Glonass receiver

FIELD: radio engineering, communication.

SUBSTANCE: GLONASS receiver includes: a signal receiving unit (11) for receiving a plurality of signals, having different frequencies, from a plurality of artificial satellites, respectively; a temperature detector (33); a memory device (14) for storing group delay characteristics of each signal in the signal receiving unit (11) in form of group delay characteristic data and for preliminary storage of the temperature dependence for group delay of each signal in the signal receiving unit (11) in form of temperature dependence data; and a position computer (15) for correcting reception time of each signal using group delay characteristic data, for correcting the reception time of each signal based on temperature and temperature dependence data and for calculating the current position in accordance with the corrected reception time.

EFFECT: high accuracy of positioning a GLONASS receiver by reducing the effect of temperature without complicating performance, reducing efficiency of the manufacturing process, complicating the circuit, increasing dimensions and reducing sensitivity.

14 cl, 8 dwg

 

The present invention relates to a GLONASS (global navigation system orbiting satellites for position measurement using GLONASS.

Systems support navigation using artificial satellites are GPS, Galileo, GLONASS, which are well known. In the case of GPS and Galileo system, each satellite transmits a signal having the same frequency. Individual code distribution for modulation is assigned to each artificial satellite to the receiver detects each artificial satellite. In the case of each GLONASS satellite transmits a signal having a different frequency. In particular, the frequency of the signal transmitted from the artificial satellites are located at intervals 562,5 kHz. Thus, the GLONASS receiver recognizes each artificial satellite on the basis of frequency.

System support navigation using artificial satellites detects the difference in transmission time and reception time of the signal from the artificial satellite. The system calculates the quasi-distance (i.e. pseudoresistance) from the artificial satellite to the receiver by multiplying the speed of light on the time difference. The system then measures the current position of the receiver based on the position information of many artificial satellites and pseudoresistance is from each satellite to the receiver.

When artificial satellites, such as the GLONASS satellites transmit signals having a different frequency, then the signal processing in the receiver, the time delay of each frequency is different, that is, the group delay of each frequency is different. When all artificial satellites such as GPS satellites and satellites Gallileo, transmit signals having the same frequency, the group delay of the signal received at the receiver from each satellite is constant. Accordingly, the group delay of the signal from each satellite is possible to cancel or compensate for that group delay had no impact on the determination of the current position of the vehicle.

On the other hand, in the case of GLONASS satellites, the group delay of each frequency differs in accordance with the characteristics of the means of reception signals, for example a bandpass filter in the receiver. The bandpass filter filters the signal in a predetermined frequency range. When the group delay of each frequency of the signal received from the corresponding artificial satellite, is different, pseudoresistance, calculated based on the time difference between the transmission time and reception time changes at each frequency, that is, pseudoresistance varies with each artificial satellite as the object, the t which the signal is received. As a result, for example, when the differential group delay is 10 NS, the difference pseudoresistance approximately equal to three meters. Thus, there arises a problem that decreases the accuracy of the current position, which is to be measured. Moreover, not only the features of the signals, but also the temperature and the individual deviation of the product can influence the differential group delay.

Thus, traditionally there are two ways to reduce the impact of group delay (see JP 3302432, JP 3691231, JP 3730387, JP 3753351). On the first path is estimated pre-prepared test piece. Based on the assessment of receive data correlation, showing the correlation between group delay and frequency. The data obtained correlation stored in the storage device of the receiver. Thus, the reception is adjusted in accordance with the data correlation between group delay and frequency stored in the storage device. The use of pseudoresistance calculated from the corrected reception time, increases the accuracy of positioning. The second path, the receiver additionally includes a measuring unit for measuring group delay in the receiver, in addition to the circuit for processing the actual with the drove. Thus, the reception is adjusted in real time in accordance with frequency and temperature, measured by means of measuring, and group delay of the individual products. The use of pseudoresistance calculated from the corrected reception time, increases the accuracy of positioning.

However, on the first path is difficult to eliminate the influence of the group delay characteristic of the temperature change. Additionally, by minimizing the individual deviations of the product, there are problems that hinder the performance and productivity of the manufacturing process is reduced. In addition, the second path you need to add more analog and most digital circuitry, which form a measurement tool. Accordingly, there are problems in that the circuit becomes complicated, and the size of the circuit becomes large. Moreover, the sensitivity decreases.

In connection with the above-described problem, the present invention is the provision of a GLONASS receiver, the positioning accuracy of which is improved by reducing the influence of temperature without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

In connection with the above-described problem, the other purpose of the present from which retene is the provision of a GLONASS receiver, the positioning accuracy of which is improved by reducing the influence of individual deviations of the product without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

In accordance with the first aspect of the present disclosure of the invention, the GLONASS receiver includes: a block of signals for reception of multiple signals having different frequencies from a variety of satellites, respectively; a temperature detector for detecting temperature of the block signals; a storage device for storing the characteristics of group delay of each signal block reception of signals at the corresponding frequency in the form of data about the characteristics of group delay at each frequency and for storing the temperature dependence of the group delay of each signal block reception of signals at the corresponding frequency in the data view temperature dependence; and the transmitter position for correcting the timing of reception of each signal having an appropriate frequency that is received by block signals, using data about the characteristics of group delay stored in the storage device, for correcting the timing of reception of each signal based on the temperature of the block signals, detektirovanii de the sector of temperature, and data of the temperature dependence stored in the storage device, and to calculate the current position in accordance with the adjusted timing.

In the above receiver positioning accuracy is improved by reducing the influence of temperature without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

In accordance with the second aspect of the present disclosure of the invention, the GLONASS receiver includes: a block of signals for reception of multiple signals having different frequencies from a variety of satellites, respectively; a storage device individual deviations of the product for storage characteristics of the block signals inherent in the individual deviation of the product from block reception of signals, in the form of data about the unique characteristics of block signals; a storage device for storing the characteristics of the group delay at each signal block reception of signals at the corresponding frequency in the form of data about the characteristics of group delay and storage latency characteristics of the individual deviations of the product from each of the signal the corresponding frequency inherent in the individual deviation of the product from block reception of signals, in vidagany about the characteristics of individual deviations of the product; and the transmitter position for correcting the timing of reception of each signal having a respective frequency that is received by block signals, using data about the characteristics of group delay stored in the storage device, for correcting the timing of reception of each signal based on a unique characteristic stored in the storage device, the individual deviations of the product, and data about the characteristics of individual deviations of the product stored in the storage device, and to calculate the current position in accordance with the adjusted timing.

In the above receiver positioning accuracy is improved by reducing the influence of individual deviations of the product without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

The above and other objectives, features and advantages of the present invention will become more apparent from the following detailed description, made with reference to the attached drawings. In the drawings:

Figure 1 - block diagram showing the construction of the GLONASS receiver in accordance with the first embodiment;

2 is a diagram showing the relation between temperature, frequency and group delay, it is when the individual deviation of the product from block reception of signals is a constant;

Figure 3 - diagram showing the relation between the individual deviation of the product from block reception of signals, the frequency and group delay, when the temperature of the block reception of signals is constant;

4 is a diagram showing a table that defines the relationship between the temperature of the block signals, the individual deviation of the product from block reception of signals and frequency;

5 is a block diagram showing the construction of a unit receiving signals GLONASS receiver in accordance with the second embodiment;

6 is a diagram showing the relation between temperature and frequency correction value;

Fig.7 is a diagram showing the relation between the channel and group delay; and

Fig diagram showing the relation between the channel and group delay, as amended in connection with the frequency correction value.

The GLONASS receiver (i.e. the "receiver"), in accordance with many exemplary embodiments of the present invention will be explained with reference to the drawings.

(The first version of the implementation)

Figure 1 shows an electric structure of the receiver 10 in accordance with the first embodiment. The receiver 10 includes a block 11 of the reception signals as a means of signal reception unit 12 of the signal processing, sensor 13 temperature as a means det is sterowania temperature, the first storage device 14 and block 15 calculation of provisions as a means of positioning. The receiver 10 includes an antenna 16, scheme 17 test and the second storage device 18 in addition to the above elements. In the above mentioned items at least block 11 signal reception unit 12 of the signal processing, sensor 13 temperature, scheme 17 test and the second storage device 18 are combined in IC (integrated circuit) 19 on a single chip. Additionally, unit 11 of the signal reception unit 12 of the signal processing, sensor 13 temperature, the first storage device 14, block 15 of calculating the position, the circuit 17 test and the second storage device 18 are formed of hardware circuitry.

Unit 11 of the receiving signals is connected with the antenna 16 to the signal transmitted from an artificial satellite (not shown), was accepted by the unit 11 receiving signals via the antenna 16. Many artificial satellites, providing GLONASS signals having a frequency intervals in 562,5 kHz. Thus, the receiver 10 receives signals in a particular frequency band, for example, from minus seventh channel in 1598,0625 MHz to plus a sixth channel in 1605,375 MHz. Each signal transmitted from the corresponding artificial satellite, provides information on EOS is an ITU satellite, about the state of the satellite and the transmission time at which the satellite transmits the signal. After the unit 11 receiving signals, amplifies the signal, which was adopted by the antenna 16, block 11 signals performs the conversion process with decreasing frequency and the filtering process, so that the block 11 generates a signal with an intermediate frequency. Block 11 of the reception signal includes a band-pass filter, which causes the group delay at each of multiple frequency signals transmitted from artificial satellites. The signals received by the unit 11 of the receiving signals, possess a certain range of frequency bands comprising each channel GLONASS. Accordingly, the signal is filtered by bandpass filter in block 11 of the reception signals, to delete unnecessary bandwidth. Thus, a signal with an intermediate frequency.

Signal with an intermediate frequency generated in block 11 of the reception signal is entered in block 12 of the signal processing. The block 12 of the signal processing converts the input signal with the intermediate frequency to baseband at the corresponding frequency of each artificial satellite. In particular, the block 12 of the signal processing converts the signal to an intermediate frequency, a band-filtered in block 11 of the reception signals, osnovopolozhniki signal for each frequency corresponding artificial satellite is. Then the block 12 of the signal processing performs various processes on the converted osnovopolozhnik signal, for example, the process of correlation codes and the detection phase, the tracking signal and the demodulation process data to the block 12 formed signal demodulation at each frequency. When the unit 12, the signal processing generates a signal demodulation, unit 12 attaches to the reception, in which a signal is being received from the satellite. The block 12 of the signal processing attaches the time of admission to the generated signal demodulation using a clock generator, not shown, and located in the receiver 10. Thus, the signal demodulation includes reception time corresponding to the time at which the signal is received from each artificial satellite.

The sensor 13 temperature is located about a block 11 of the reception signals. The sensor 13 detects temperature of the temperature in the position of its placement, that is, the temperature of the block 11 of the reception signals, which is located near the sensor 13. The sensor 13 detects temperature temperature approximately equal to the temperature of the block 11 of the reception signal when the distance from the sensor 13 of the block 11 of the reception signals is small. The sensor 13 temperature displays detektirovaniya temperature in the form of an electrical signal in block 15 of calculating the position. Preferably publish the th sensor 13 temperature very close to the unit 11 of the receiving signals. In particular, it is preferable to place the block 11 of the reception signals is very close to the sensor 13 temperature on the same crystal, that is on the same circuit. When the unit 11 of the receiving signals is located close to the sensor 13 temperature, the temperature of the block 11 of the reception signals and temperature, detektirovaniya sensor 13 and the temperature is almost the same. The result is improved accuracy of detecting the temperature of the block 11 of the reception signals using sensor 13 temperature.

The first storage device 14 includes a storage medium such as ROM or EEPROM capable of storing data even when there is a power cut. The first storage device 14 stores data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product. Data about the characteristics of group delay include the characteristics of the group delay at block 11 of the reception signals at each frequency. These temperature dependencies include-dependent temperature characteristics of the delay in block 11 of the reception signals at each frequency. Data about the characteristics of individual deviations of the product include the characteristic delay of the individual deviations of the product inherent in the individual deviation of the product from unit 11 of the receiving signals at the water frequency. Here data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product will be explained in detail later.

Block 15 calculate the position adjusts the time of admission, located in the signal demodulation in each channel formed in the block 12 of the signal processing in accordance with data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product stored in the first storage device 14. The calculation unit 15 calculates the position pseudoresistance from the corresponding artificial satellite corresponding to each channel, based on the adjusted time of admission. Additionally, the block 15 calculating the position of the detected current position in accordance with a calculated psevdomasteram from each artificial satellite.

Scheme 17 testing is to detect deviations during production. At least the deviation during production inherent in the individual product unit 11 of the reception signals detected using the scheme 17 testing during the manufacturing process of the IC. Detektirovanie deviation during production is stored as data about the unique characteristics of the second saponi the surrounding device 18. The second storage device 18 corresponds to the storage means of the individual deviations of the product. For example, an oscillating circuit CR is embedded in scheme 17 test that the block 11 signals were detected frequency output from the oscillating circuit CR. Thus, the capacitance C of the capacitor and the resistance R is related to the characteristic of the bandpass filter included in block 11 of the reception signals are obtained as data about the unique characteristics of the block 11 of the reception signals. The data obtained about the unique characteristics of the block 11 of the reception signals stored in the second storage device 18. The second storage device 18 is formed in the form of non-volatile storage media, similar to the first storage device 14 on IP 19.

Next will be explained in detail data on characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product.

As described above, the band-pass filter in block 11 of the reception signals generates the deflection characteristics of the group delay at each frequency, which corresponds to the object filter. In particular, the set of signals having different frequencies are taken from a variety of satellites, have a relative time difference at the corresponding frequency is, when the signals are filtered in bandpass filter. Accordingly, the first storage device 14 stores the group delay, formed at each frequency, in the form of data about the characteristics of group delay. As shown in figure 2, even when the temperature in block 11 of the reception signals is continuously equal to, for example, 40°C, group delay (measured in nanoseconds) in each channel is different. In figure 2, when the temperature of the block 11 of the reception signal is equal to 40°C, and the individual deviation of the product from block 11 signals the average (i.e., the deviation is ±0%), the group delay at zero channel f0" is set as the standard value S'. Deviation from the standard value S is set as the offset group delay. As shown in figure 2, even when the temperature is constantly equal to 40°C, group delay is different for each frequency of the signal, i.e. group delay is different for each artificial satellite, which transmits the signal. Thus, the first storage device 14 stores the relationship between channel frequency and group delay are shown in figure 2, in the form of data about the characteristics of group delay, which show the function of the group delay versus frequency. Thus, the calculation unit 15 position adjusts the reception time included in the signal demodulation on each cha is the Thoth, formed in the block 12 of the signal processing in accordance with data about the characteristics of group delay stored in the first storage device 14.

The characteristic of the bandpass filter in block 11 of the reception of the signal changes with respect to temperature, even when the received frequency is constant. Accordingly, the group delay in block 11 of the reception signal has a relative deviation with respect not only to frequency but also to the temperature. The first storage device 14 stores the group delay, formed at each temperature, the data of the temperature dependence. For example, as shown in figure 2, even when the frequency of block 11 of the reception signals is constantly equal to "minus seventh channel group delay varies with temperature. In figure 2, when the frequency is equal to the minus seventh channel", and the temperature of the block 11 of the reception signal changes from "115°C" to "-40°C" through "40°C", group delay changes. Group delay is the deviation in relation to the temperature on other channels that do not apply only to the case "minus seventh channel". Thus, the first storage device 14 stores the relation between the frequency and group delay are shown in figure 2, in the form of data of the temperature dependence, which shows the function of the group delay versus frequency at each temperature is e, this function includes the effect of temperature. Thus, the first storage device 14 stores the relation between the frequency and group delay as data about the characteristics of group delay and data of the temperature dependence, which are included in each other together with the temperature. Thus, the calculation unit 15 position adjusts the reception time included in the signal demodulation for each frequency generated by the block 12 of the signal processing in accordance with the temperature of the block 11 of the reception signals received by the sensor 13 temperature data and the temperature dependence stored in the first storage device 14.

Advanced band-pass filter in block 11 of the reception signal has a characteristic which varies due to individual variances of the product, even when the perceived frequency and constant temperature. Accordingly, the group delay in block 11 of the reception signal has a relative deviation with respect not only to the frequency and temperature, but also to the individual deviation of the product. Thus, the first storage device 14 stores the group delay inherent in the individual deviation of the product, in the form of data about the characteristics of individual deviations of the product. Data about the characteristics of individual deviations of the product stored in the first upominalam device 14. Data about the characteristics of individual deviations of the product is determined according to the unique characteristics of each individual product unit 11 of the receiving signals. Data characteristics are obtained in the form of unique data about each individual product unit 11 receiving signals using the scheme 17 testing in the manufacturing process of the IC 19. Data on the characteristics stored in the second storage device 18. As shown in figure 3, even when the temperature of the block 11 of the reception signals is constantly equal to 40°C and the frequency is constant at minus seventh channel" or "plus a sixth channel group delay varies relative to the individual deviations of the product from unit 11 of the receiving signals. Figure 3 the product of the capacitance C CR oscillating circuit and the resistance R in the circuit 17 testing is used as a parameter, which shows the individual deviation of the product. In figure 3, when the temperature of the block 11 to receive signals in the example equal to 40°C, group delay at zero channel f0" in the case where the product of capacitance C and resistance R is equal to ±0%, is set as the standard value S'. The deviation with respect to the standard value S is set as the offset group delay. As shown in figure 3, even when the temperature of the block 11 of the reception signals is constantly equal to 40°C frequency is constant at minus seventh channel" or "plus a sixth channel", group delay varies relatively unique setting in each individual deviation of the product unit 11 of the receiving signals. In particular, when changing the product of capacitance C and resistance R in each individual product unit 11 of the reception signal, the group delay is also changing. Thus, the first storage device 14 stores the relationship between the channel and group delay for each parameter in the form of data about the characteristics of individual deviations of the product, this parameter shows the individual deviation of the product. In this case, the first storage device 14 stores the relationship between the channel and group delay shown in figure 3, at different temperatures, including 40°C, in the form of data about the characteristics of individual deviations of the product. Thus, the calculation unit 15 position adjusts the reception time included in the signal demodulation at each frequency, formed in the block 12 of the signal processing in accordance with previously obtained data about the unique characteristics of block signals stored in the second storage device 18, and data about the characteristics of individual deviations of the product stored in the first storage device 14.

Next will be explained the function of the receiver 10 having the above-mentioned built the E.

Unit 11 receiving signals, amplifies the received signal, when transmitted from an artificial satellite signal is received by antenna 16. Then, the unit 11 performs the conversion process with decreasing frequency and the filtering process using a band-pass filter to block 11 formed signal with an intermediate frequency. When the received signal is filtered through a band-pass filter in block 11 of the reception signal, the signal is formed group delay in accordance with the appropriate frequency.

The block 12 of the signal processing converts the signal to an intermediate frequency generated in block 11 of the reception signals, osnovopolozhniki signal for each frequency corresponding artificial satellite. Additionally, the unit 12 performs various well-known processes, for example the process of correlation codes and the detection phase, the tracking signal and the demodulation process data to the block 12 formed signal demodulation in each channel. The receiver 10 attaches to the signal demodulation the time at which the signal from the satellite, as the reception time, using a clock generator, not shown, and located in the receiver 10. Thus, the signal demodulation includes reception time corresponding to the time at which the signal is received on each channel. Block 15 calculating the position of korrektiruete reception included in the signal demodulation in each channel formed in the block 12 of the signal processing in accordance with data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product stored in the first storage device 14.

In particular, the calculation unit 15 position receives the temperature unit 11 receiving signals from the sensor 13 and additionally receives data about the unique characteristics of the block 11 of the reception signals from the second storage device 18, to adjust the reception time included in the signal demodulation in each channel formed by the block 12 of the signal processing. Based on the obtained temperature data of the characteristic unit 11 of the signal receiving unit 15 calculating the position of the reads from the first storage device 14, the data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product corresponding to the received temperature and data characteristics. As described above, the data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product do not exist independently. When determining the temperature of the block 11 of the reception signals and the data is e about the unique characteristics of the block 11 of the reception signals, they are obtained as functions of frequency and group delay corresponding to the temperature and data about unique characteristic. A function of frequency and group delay provides data about the characteristics of group delay, which includes the temperature dependence and the characteristics of the individual deviations of the product. Unit 15 the calculation of the regulations establishes the offset group delay at each frequency based on the characteristics of the group delay, which includes the obtained temperature dependence and the resulting characteristics of the individual deviations of the product. Block 15 calculate the position adjusts the reception time included in the signal demodulation in each channel formed in the block 12 of the signal processing in accordance with the offset group delay in each channel, i.e. for each frequency.

The calculation unit 15 calculates the position pseudoresistance to artificial satellite corresponding to each channel, in accordance with the timing adjusted based on the offset group delay and is included in the signal demodulation. Then the computing unit position detects position of the receiver 10, i.e. the current position from the calculated pseudoresistance to each artificial satellite. Block 15 calculate the position adjusts with Galy, having a different frequency from the set of satellites that the unit 15 has detected the current position in accordance with the above procedure.

In the first embodiment described above, the first storage device 14 stores data about the characteristics of group delay, which includes the characteristics of the group delay in each channel, i.e. for each frequency, the data of the temperature dependence, which includes the characteristics of the group delay at each temperature block 11 of the reception signals, and data about the characteristics of individual deviations of the product, including the characteristics of the group delay caused by the individual deviation of the product in block 11 of the reception signals, in the form of integrals of functions. Block 15 calculate the position adjusts the time of admission on the basis of data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product before the unit will determine the position based on signals having different frequencies. In particular, block 15 calculating the position of the reads function showing the relation between the channel and group delay corresponding to the temperature, and the data about the characteristic of the first storage device 14 based on the temperature of the block 11 of the reception signals received on what ticom 13 temperature, and data about the unique characteristics of each individual product unit 11 of the reception signals stored in the second storage device 18. Unit 15 the calculation of the regulations establishes the offset group delay in each channel to adjust the time of admission using the read function showing the relation between the channel and group delay. As a result, the calculation unit 15 position adjusts the time of admission in each channel in accordance with the offset group delay, which includes the effect of temperature and individual deviations of the product from unit 11 of the receiving signals. Accordingly, the influence of temperature and individual deviations of the product from unit 11 of the receiving signals is reduced without complicating the execution performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity so that the positioning accuracy is improved.

Moreover, in the first embodiment, the block 11 of the reception signals and the sensor 13 temperature are placed on a single chip. Accordingly, the temperature sensor 13 and temperature unit 11 of the receiving signals is almost homogeneous. Thus, the increased accuracy of detection of the sensor 13 and the temperature on the temperature unit 11 of the receiving signals. As a result, the deviation of the group delay of wismann the e temperature of the block 11 of the reception signals, adjusted with high precision unit 15 calculate the position using the temperature detektirovaniya sensor 13 temperature. Thus, the positioning accuracy is increased further.

Additionally, in the first embodiment, the offset group delay in each channel is stored as a function of group delay versus frequency of the corresponding channel in the first storage device 14. Thus, the first storage device 14 stores the function to reduce the amount of data required to specify the offset group delay. Accordingly, the first storage device 14 having a relatively small capacity.

(Modification of the first variant implementation)

In the above first embodiment, the offset group delay in each channel is stored as a function of group delay versus frequency of the corresponding channel in the first storage device 14. Alternatively, group delay versus frequency of the corresponding channel can be stored in the table 30, as shown in figure 4, instead of the function in the first storage device 14. When the table 30, as shown in figure 4, is used to set the offset group delay, the calculation unit 15 of the regulations establishes the offset gruppovoj the delay based on the characteristic stored in the second storage device 18, and the temperature of the block 11 of the reception signals, detektirovanii sensor 13 temperature, and data about the characteristics show the individual deviation of the product from unit 11 of the receiving signals. In particular, as shown in figure 4, the table 30 includes a variety of two-dimensional tables for every data about the characteristics, that is, for each degree of deviation of the capacitance C and resistance R. Each two-dimensional table contains the first axis of the channel, i.e. frequency, and a second axis temperature. Thus, the calculation unit 15 provisions retrieves the offset group delay in each channel in accordance with the obtained temperature of the block 11 of the receiving signals and data about the feature.

Thus, the calculation unit 15 of the regulations establishes the offset group delay related to the temperature of the block 11 of the receiving signals and data about the characteristics, showing the individual deviation of the product, even when, instead of the function table 30.

Moreover, both the function and the table data on the characteristics of the group delay, the data of the temperature dependence and data about the characteristics of individual deviations products include various data at discrete conditions, so that the temperature equal to -40°C, 0°C, 40°C, 80°C or 115°C, and the data about the characteristic being equal to"+20%", "+10", "±0%", "-10%" or "-20%". Accordingly, when the value is intermediate, can be used interpolation method or the like to calculate on the basis of the next conditions. For example, when the temperature of the block 11 of the reception signals received regarding specific data about the characteristics equal to "20°C", the time delay when "0°C" in the data about the characteristics and time delay when "40°C" in the data about the characteristics used for the interpolation method to find the delay time of each frequency when "20°C". Data about the characteristics can be the same temperature. In this case, the data corresponding to the condition, located in the intermediate discrete condition, can be obtained by interpolation method not only in the case when use is shown in table 4, but also when used is shown in figure 2 and 3 function. This reduces the amount of data that must be stored in the first storage device 14.

Moreover, not only the data about the characteristics of group delay data of the temperature dependence and data about the characteristics of individual deviations of the product, but also a variety of frequencies, i.e. a set of channels corresponding to the many artificial satellites, may be provided with discrete data in a function or table 30. For example, the function or the table is 30 with respect to all channels from "minus seventh channel" to "plus a sixth channel, transferred from each artificial satellite, may not be stored in the first storage device 14, and can only be stored function or table 30 relative to the part of the channels, including the minus seventh channel", "zero channel" and "plus a sixth channel. In this case, the function or table 30 relative to the channels other than the saved channels, such as "minus sixth channel", "minus channel five" and so on, can be calculated by the interpolation method using a function or table 30 containing discrete channels and stored in the first storage device 14.

In the above embodiment, the data about the characteristic detected CR oscillating circuit in the circuit 17 of the test are stored in the second storage device 18. Alternatively, the second storage device 18 may store the group delay of the individual product unit 11 of the receiving signals at the preset specific frequency and preset a certain temperature as the data about the feature.

Advanced band-pass filter in block 11 of the reception signals and the second storage device 18 may be combined in a single chip IC. In this case, data about the characteristics may include the capacitance C, resistance R, and the threshold voltage Vth of the transistor, which is s are production conditions single-chip IP. In the validation process, single-chip IP data about the characteristics are measured and stored in the second storage device 18, so that the production process single-chip IP was carried out effectively.

In the above first embodiment, the calculation unit 15 position performs correction with respect to temperature and the individual deviation of the product from unit 11 of the receiving signals to detect the position. Alternatively, the calculation unit 15 may detect the position to perform only one of the correction based on the temperature of the block 11 of the reception signals and the correction on the basis of a deviation of the product from unit 11 of the receiving signals.

(The second variant implementation)

Figure 5 shows the main part of the receiver 10 in accordance with the second embodiment. Here, when the structural element is almost the same as in the first embodiment, the element is assigned the same reference number, and the explanation of this item is not described.

5 is a block diagram showing in detail the block 11 of the reception signal in the receiver 10 in accordance with the second embodiment. Unit 11 receiving the signals includes a low noise amplifier 21 (i.e. LNA), band-pass filter 22 RF (radio frequency)amplifier 23, a mixer 24, the generator 25 signals (i.e. SG) and Polozova the filter 26 the if (intermediate frequency). Low noise amplifier 21 amplifies the signal passed by the antenna 16. The bandpass filter 22 RF includes filter surfactants, etc. Bandpass filter 22 RF removes unnecessary frequency component included in the signal, amplified by a low noise amplifier 21. In particular, the bandpass filter 22 RF allows you to skip the signal in a predetermined range of frequency band and attenuates a signal having a frequency outside the frequency band. The amplifier 23 amplifies the signal, bandpass filtered by filter 22 RF. The mixer 24 converts with decreasing frequency signal passed through the bandpass filter 22 RF and the amplifier 23, using the signal generated by the generator 25 signals. In particular, the mixer 24 and the generator 25 signals correspond to the block frequency conversion. When the signal converted to a lower frequency by the mixer 24, passes through the bandpass filter 26 FC, removes unnecessary frequency component, and then the signal is outputted in the form of a signal with an intermediate frequency of block 11 of the reception signals. Band-pass filter 26 of the inverter allows you to skip the signal in a predetermined range of frequency band, similar to a bandpass filter 22 RF, and weakens the signal having a frequency outside the frequency band.

Thus, the block 11 of the reception signal includes a band-pass filter 22 RF and band-pass filter 26 of the inverter. Accordingly, the group delay is in the accepted signal may occur not only in the bandpass filter 26 FC, but also in the bandpass filter 22 RF. In the second embodiment, the calculation unit 15 position corrects the group delay in the passband of the filter 22 to the RF in accordance with the temperature of the block 11 of the signal processing.

The first storage device 14 stores data of the temperature dependence and data about the characteristics of group delay. These temperature dependencies include the relation between temperature T (°C) and the frequency correction value Δf (MHz), as shown in Fig.6. Data about the characteristics of group delay include the ratio between the channel, i.e. the frequency f (MHz), and group delay d (nanoseconds) at standard temperature Ts (°C), shown as the solid lines in Fig.7. The solid line figure 7 shows the standard data of the temperature dependence at standard temperature Ts, for example, Ts = 25°C.

The channel, i.e. the frequency f of the signal received by the unit 11 of the receiving signals, and group delay d has a ratio shown in Fig.7. In particular, the group delay d is a function of frequency f, that is, the channel signal received by the unit 11 of the receiving signals. Additionally, the ratio between the channel, i.e. the frequency f, and group delay d varies with temperature. In particular, when increasing the temperature T of the block 11 of the reception signals, detektirovaniya on what ticom 13 temperature, the ratio between the channel f and group delay d is shifted to the left side 7, as shown by the dotted line 7. In particular, when the channel is the same, the ratio is shifted in the direction of increasing group delay. Here the dotted line in figure 7 represents a case where the temperature T is equal to 85°C. the shift Value relative to the temperature corresponds to the frequency correction value Δf. The frequency correction value Δf becomes larger when the temperature T increases, as shown in Fig.6. In particular, when the temperature of the block 11 of the signal processing above standard temperature Ts, the frequency correction value Δf is positive. When the temperature of the block 11 processing of signals below the preset temperature Ts, the frequency correction value Δf is negative. When the frequency correction value Δf is positive, the ratio between the channel f and group delay d is shifted to the left side of Fig.7, that is, the ratio has shifted, in which the group delay increases. On the other hand, when the frequency correction value Δf is negative, the ratio between the channel f and group delay d is shifted to the right side of Fig.7, that is, the ratio has shifted, in which the group delay is reduced. Here Fig.6 shows an example of the main correlation between temperature and frequency correction value Δf. Alternatively, the ratio may be an additional ratio or other ratios.

Block 15 calculate the position corrects the group delay in the passband of the filter 22 to the RF in connection with the above ratio. In particular, block 15 calculating the position of the detected temperature of the block 11 of the reception signals using sensor 13 temperature. Block 15 calculate the position specifies the frequency correction value Δf in accordance with the ratio shown in Fig.6, based detektirovanii temperature Td as detektirovanii temperature. Here the first storage device 14 may store the relation between temperature T and the frequency correction value Δf shown in Fig.6, in the form of the equation is a function of temperature T. alternatively, the unit 14 can store the value in the table with respect to the temperature T.

When you set the value of the frequency correction Δf relative to detektirovanii temperature Td, block 15 calculating the position of the standard shifts the data of the temperature dependence at standard temperature Ts using the specified values of the frequency correction Δf, as shown in Fig.7. Unit 15 the calculation of the regulations establishes the standard data of the temperature dependence data of the temperature dependence, as shown in Fig. Block 15 vechicle the Oia position sets the group delay d relative to the desired channel f, that is, channel f0 +Δf, using the specified data of the temperature dependence, and the channel f0 +Δf prepared by adding the values of the frequency correction Δf to the original channel f0. Block 15 calculate the position adjusts the time of admission, that is, the group delay of the signal in the bandpass filter 22 RF, using the specified group delay d.

In the second embodiment adjusts not only the group delay of a signal with an intermediate frequency bandpass filtered by filter 26 of the inverter, but also the group delay of the signal, bandpass filtered by filter 22 RF. When adjusted time of reception of the signal at each frequency, bandpass filtered by filter 22 RF, independently adjusts not only the signal, bandpass filtered by filter 26 of the inverter, but also the signal that has been filtered by bandpass filter 22 RF. Accordingly, the positioning accuracy is improved by reducing the influence of individual deviations of the product from unit 11 receiving signals without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

In the second embodiment, the frequency correction value Δf is obtained on the basis of the temperature of the block 11 of the reception signals, detektirovanii sensor 13 temperature. Standard data is emperatures based shift in the received frequency correction value Δf. This sets the group delay d at detektirovanii temperature Td. Accordingly, the data stored in the first storage device 14 include at least the relation between temperature T and the frequency correction value Δf shown in Fig.6, and the standard data of the temperature dependence at standard temperature Ts, is shown in Fig.7. Accordingly, do not need complex computation and large storage capacity, and the result is characteristic of group delay with respect to detektirovanii temperature. The accuracy of the time of reception increases, and improves the positioning accuracy.

The above disclosure of the invention has the following aspects.

In accordance with the first aspect of the present disclosure of the invention, the GLONASS receiver includes: a block of signals for reception of multiple signals having different frequencies from a variety of satellites, respectively; a temperature detector for detecting temperature of the block signals; a storage device for storing the characteristics of group delay of each signal block reception of signals at the corresponding frequency in the form of data about the characteristics of group delay at each frequency and for storing the temperature dependence of the group delay of each signal is in the block reception of signals at the corresponding frequency in the data view temperature dependence; and the transmitter position for correcting the timing of reception of each signal having a respective frequency that is received by block signals, using data about the characteristics of group delay stored in the storage device, for correcting the timing of reception of each signal based on the temperature of the block signals, detektirovanii the temperature detector, and the data of the temperature dependence stored in the storage device, and to calculate the current position in accordance with the adjusted timing.

In the above receiver storage device stores data about the characteristics of group delay and the data of the temperature dependence of the group delay characteristics. Data about the characteristics of group delay include the characteristics of the group delay at block reception of signals at each frequency. In particular, the block reception of signals has a different group delay at each frequency, caused, for example, characteristic of the bandpass filter. Accordingly, the memory device pre-stores the group delay block receiving signals at each frequency in the form of data about the characteristics of group delay. These temperature dependencies include-dependent temperature characteristic delay the group delay in the Loka of the reception signals at each frequency. For example, dependent on the temperature characteristic of the delay, i.e. the group delay characteristic of the band pass filter unit receiving signals varies with temperature, even when the frequency is the same. Accordingly, the storage device stores dependent on the temperature characteristic of the delay at block reception of signals in the form of data of the temperature dependence. The transmitter position adjusts the signal having an appropriate frequency, adopted by the unit receiving signals from each artificial satellite, in accordance with the data on the characteristics of the group delay and the data of the temperature dependence. The signal includes information about the orbit of the satellite, the satellite, the time of transmission, in which the satellite transmits a signal, etc. in Addition, the signal is modulated. In particular, the transmitter position adjusts the reception time at which the signal from the artificial satellite, using data about the characteristics of group delay in accordance with the characteristic of each frequency. Additionally, the transmitter position adjusts the time of admission in accordance with the temperature of the block signals, detektirovanii detector temperature, using the data of the temperature dependence. Accordingly, the positioning accuracy is improved by reducing effect for the I temperature without increasing the complexity of the execution, performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

Alternatively, the block signals and the temperature detector may be located on a single chip. In this case, the means of detecting temperature, and a means of receiving signals have an almost uniform temperature. Thus, the means of detecting the temperature increases the accuracy of detecting the temperature of the means of reception signals. As a result, changing the characteristics of the means of reception of signals caused by temperature, is adjusted with high accuracy vehicle positioning using temperature, detektirovanii means for detecting temperature. Accordingly, the positioning accuracy is increased further.

In accordance with the second aspect of the present disclosure of the invention, the GLONASS receiver includes: a block of signals for reception of multiple signals having different frequencies from a variety of satellites, respectively; a storage device individual deviations of the product for storage characteristics of the block signals inherent in the individual deviation of the product from block reception of signals, in the form of data about the unique characteristics of block signals; a storage device is for storing the characteristics of the group delay at each signal block reception of signals at the corresponding frequency in the form of data about the characteristics of group delay and storage characteristics of the individual delay deviation of the product from each of the signal at the corresponding frequency, inherent in the individual deviation of the product from block reception of signals, in the form of data about the characteristics of individual deviations of the product; and the transmitter position for correcting the timing of reception of each signal having a respective frequency that is received by block signals, using data about the characteristics of group delay stored in the storage device, for correcting the timing of reception of each signal based on a unique characteristic stored in the storage device, the individual deviations of the product, and data about the characteristics of individual deviations of the product stored in the storage device, and to calculate the current position in accordance with the adjusted timing.

In the above receiver storage device stores data about the characteristics of group delay and data about the characteristics of individual deviations of the product. Data about the characteristics of group delay include the characteristics of the group delay at block reception of signals at each frequency. In particular, the block reception of signals has a different group delay at each frequency, caused, for example, characteristic of the bandpass filter. Accordingly, the memory device pre is varicella stores group delay block receiving signals at each frequency in the form of data about the characteristics of group delay. Data about the characteristics of individual deviations of the product include the characteristics of the group delay inherent in the individual deviation of the product from block reception of signals. For example, the bandpass filter unit receiving signals has a characteristic of the individual deviations of the product, which varies with each individual product that is characteristic of the group delay varies with each individual product, even when the same frequency and the same temperature. Accordingly, the storage device stores the characteristic delay of the individual deviations of the product from unit to receive signals in the form of data about the characteristics of individual deviations of the product. The transmitter position corrects the reception signal having an appropriate frequency, the received block signals from each artificial satellite, in accordance with the data about the characteristics of group delay and data about the characteristics of individual deviations of the product. In particular, the transmitter position adjusts the time of admission in accordance with the characteristic of each frequency, using data about the characteristics of group delay. Additionally, the transmitter position adjusts the time of admission in accordance with the individual deviation of the product from block reception of signals using the data is about the characteristics of individual deviations of the items in the data about the unique characteristics of the block signals, stored in a storage device of the individual deviations of the product. Accordingly, the positioning accuracy is improved by reducing the influence of individual deviations of the product without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

Alternatively, the GLONASS receiver may further include: a temperature detector for detecting temperature of the block signals. The storage device stores the temperature dependence of the group delay of each signal block reception of signals at the corresponding frequency in the data view temperature dependence. The transmitter position adjusts the time of reception of each signal based on the temperature of the block signals, detektirovanii the temperature detector, and the data of the temperature dependence, stored in a storage device.

Additionally, the delay time of each signal at the corresponding frequency may be different from each other when the signal is processed in block signals. The delay time of each signal is defined as the group delay at the corresponding frequency. Group delay at each frequency depends on the characteristics of the group delay block receiving signals, the temperature of the block is of Riem signals and latency characteristics of the individual deviations of the product from block reception of signals.

In addition, the GLONASS receiver may further include: a signal processor. Block signals amplifies each signal and performs the conversion with decreasing frequency and filtering each amplified signal to generate a corresponding signal with an intermediate frequency. The signal processor converts each signal with an intermediate frequency in osnovopolozhniki signal at the corresponding frequency, performs correlation codes and the detection phase, the tracking signal and demodulation of the data over each osnovopolozhnik signal to generate a corresponding signal demodulation. The signal processor attaches the time of reception of each signal, in which the corresponding signal is received by block signals. The transmitter position adjusts the time of reception of each signal based on the characteristic of the group delay data of the temperature dependence and data about the characteristics of individual deviations of the product. The computer calculates the position pseudoresistance between the respective artificial satellites and GLONASS receiver in accordance with the adjusted timing. The transmitter position calculates the current position based on pseudoresistance to each artificial satellite.

Alternatively, the block signals can the t to include: block frequency conversion for converting each frequency of the corresponding signal, taken from the corresponding artificial satellite to generate a signal with an intermediate frequency bandpass filter for RF bandwidth of each signal having an appropriate frequency in a predetermined range before the signal frequency is converted by the conversion unit frequency; and a band-pass filter FC for transmission of each signal having an appropriate frequency in a predetermined range, after the frequency of the signal converted by the conversion unit frequency. The transmitter position adjusts the time of reception of each signal at the corresponding frequency, bandpass filtered by the if filter, using data about the characteristics of group delay and the data of the temperature dependence stored in the storage device. In this case, the reception signal includes a block frequency conversion, band-pass RF filter and bandpass if filter. The transmitter position corrects the reception signal for each frequency, a band-filtered RF signal or for each frequency, bandpass filtered by the if filter, using data about the characteristics of group delay and the data of the temperature dependence. Thus, when the unit is receiving signals includes a bandpass RF filter and bandpass if filter, the influence of the group delay RA the tet independently for cases, when the signal is bandpass filtered by the RF filter or bandpass filter FC. Thus, the signal which you want to filter each filter is adjusted independently, as adjusted time of reception of the signal at each frequency, the filtered RF band-pass filter or band-pass filter FC. Accordingly, the positioning accuracy is improved by reducing the influence of individual deviations of the product from the means of receiving signals without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase the size and reduce the sensitivity.

Alternatively, the block signals may include: a unit of frequency conversion for converting each frequency of the corresponding signal received from the corresponding artificial satellite to generate a signal with an intermediate frequency bandpass filter for RF bandwidth of each signal having an appropriate frequency in a predetermined range before the signal frequency is converted by the conversion unit frequency; and a band-pass filter FC for transmission of each signal having an appropriate frequency in a predetermined range, after the frequency of the signal converted by the conversion unit frequency. The transmitter position korrektiruete the reception of each signal at the corresponding frequency, band-filtered RF, using data about the characteristics of group delay and the data of the temperature dependence stored in the storage device. In this case, the reception signal includes a block frequency conversion, band-pass RF filter and bandpass if filter. The transmitter position corrects the reception signal for each frequency, a band-filtered RF signal or for each frequency, bandpass filtered by the if filter, using data about the characteristics of group delay and the data of the temperature dependence. Thus, when the unit is receiving signals includes a bandpass RF filter and bandpass if filter, the influence of the group delay grows independently in cases where the signal is filtered RF band-pass filter or band-pass filter FC. Thus, the signal which you want to filter each filter is adjusted independently, as adjusted time of reception of the signal at each frequency, the filtered RF band-pass filter or band-pass filter FC. Accordingly, the positioning accuracy is improved by reducing the influence of individual deviations of the product from the means of receiving signals without increasing the complexity of the performance, the performance of the production process, increase the complexity of the scheme, increase in size and red eye reduction is of sensitivity.

Alternatively, the transmitter may adjust the time of reception of each signal at the corresponding frequency, bandpass filtered by the if filter, using data about the characteristics of group delay and the data of the temperature dependence, stored in a storage device.

Alternatively, the data of the temperature dependence may include the relationship between the temperature of the block signals and the frequency correction value. Data about the characteristics of group delay include the ratio of each frequency of the corresponding signal received by block signals, and the characteristics of the group delay at a predetermined standard temperature standard temperature data dependencies. The transmitter position sets the value of the frequency correction in detektirovanii temperature using the data of the temperature dependence in accordance with detektirovanii the temperature of the block signals, detektirovanii the temperature detector, corrects the standard data of the temperature dependence using the specified values of the frequency correction to set the characteristic of the group delay at detektirovanii temperature, and adjusts the time of reception of each signal, bandpass filtered Phi is trom RF. In this case, the transmitter position corrects the reception signal, a band-filtered RF. In particular, the transmitter position sets the value of the frequency correction in detektirovanii temperature using the data of the temperature dependence in accordance with detektirovanii the temperature of the block signals, detektirovanii by the temperature detector. The value of the frequency correction is included in the data of the temperature dependence as a function of the temperature of the block signals. The transmitter position adjusts the standard data of the temperature dependence using the specified values for frequency correction. Additionally, the transmitter position specifies the characteristics of the group delay at detektirovanii temperature. As described above, the value of the frequency correction is included in the data of the temperature dependence as a function of temperature. On the other hand, data about the characteristics of group delay include the relation between the frequency of the received signal with a group delay characteristic in the form of standard data temperature dependence at a predetermined standard temperature. When the temperature of the block reception of the signal changes, the standard data of the temperature dependence also varies with the temperature. In particular, often the and data of the temperature dependence of changes in value, corresponding to the frequency correction value in relation to the standard data of the temperature dependence. Thus, only when you set detektirovaniya temperature, the obtained data of the temperature dependence of adjusted using the frequency correction values, and the characteristic of group delay based on the data of the temperature dependence. As a result, when the storage device stores the standard data of the temperature dependence and the relationship between the temperature of the block signals and the frequency correction value is characteristic of the group delay with respect to detektirovanii temperature. Accordingly, do not need complex computation and large storage capacity, and the result is characteristic of group delay with respect to detektirovanii temperature. The accuracy of the time of reception increases, and improves the positioning accuracy.

Although the invention is described with reference to its preferred options for implementation, you need to understand that the invention is not limited to the preferred implementation options and designs. The invention is intended to cover various modifications and equivalent arrangement. Moreover, despite the various combinations and configurations, which are preferred, other combinations and to the hence, adaptation, including more, less or only a single element, are also within the essence and scope of the invention.

1. The GLONASS receiver, comprising:
block (11) signals to receive multiple signals having different frequencies from a variety of satellites, respectively;
the detector (13) temperature to detect the temperature of the block (11) of the reception signals;
the storage device (14) for storing characteristics of group delay of each signal block (11) of the reception signal at the corresponding frequency in the form of data characteristics group delay for each frequency and for pre maintain the temperature dependence of the group delay of each signal block (11) of the reception signal at the corresponding frequency in the data view temperature dependence; and
the transmitter (15) provisions for the correction of the time of reception of each signal having a respective frequency that is received by a block (11) signals, using the data characteristics of the group delay stored in the storage device (14)for correcting the time of reception of each signal based on the temperature of the block (11) signals, detektirovanii detector (13) temperature data and the temperature dependence, stored in a storage device (14), and to calculate the current position in accordance with odor ektirovanii acquisition time,
the block (11) of the reception signal includes a band-pass filter (22, 26) for filtering each signal in a predetermined frequency range, and the data characteristics of the group delay is determined for each frequency on the characteristics of the unit (11) receiving signals related to the bandpass filter (22, 26).

2. The GLONASS receiver according to claim 1, in which the block (11) of the reception signals and the detector (13) temperature are placed on a single chip.

3. The GLONASS receiver according to claim 1 or 2, wherein a block (11) receiving the signals includes:
block (24-25) frequency conversion for converting each frequency of the corresponding signal received from the corresponding artificial satellite to generate an intermediate frequency signal;
band-pass filter (22) for RF transmission of each signal having an appropriate frequency in a predetermined range before the signal frequency is converted by the block (24-25) frequency conversion; and
band-pass filter (26) for FC bandwidth at each signal having an appropriate frequency in a predetermined range, after the signal frequency is converted by the block (24-25) frequency conversion, and
thus the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency, a band-filtered (26) if using on the installed characteristics of the group delay and the data of the temperature dependence, stored in a storage device (14).

4. The GLONASS receiver according to claim 1 or 2, wherein a block (11) receiving the signals includes:
block (24-25) frequency conversion for converting each frequency of the corresponding signal received from the corresponding artificial satellite to generate an intermediate frequency signal;
band-pass filter (22) for RF transmission of each signal having an appropriate frequency in a predetermined range before the signal frequency is converted by the block (24-25) frequency conversion; and
band-pass filter (26) for FC bandwidth at each signal having an appropriate frequency in a predetermined range, after the signal frequency is converted by the block (24-25) frequency conversion, and
thus the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency, a band-filtered (22) RF, using the data characteristics of the group delay and the data of the temperature dependence, stored in a storage device (14).

5. The GLONASS receiver according to claim 4, in which the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency, a band-filtered (26) of the inverter, using the data characteristics of the group delay and the data of the temperature dependence, is stored in a storage device (14).

6. The GLONASS receiver according to claim 4,
in which the data of the temperature dependence include the relationship between the temperature of the block (11) of the reception signal and the frequency correction value,
when the group delay characteristics include the ratio of each frequency of the corresponding signal
adopted by the unit (11) of the reception signal, and the characteristic of the group delay at a predetermined standard temperature standard temperature data dependencies, and
in which the transmitter (15) position sets the value of the frequency correction in detektirovanii temperature using the data of the temperature dependence in accordance with detektirovanii temperature unit (11) signals, detektirovanii detector (13) temperature, adjusts the standard data of the temperature dependence using the specified values of the frequency correction to set the characteristic of the group delay at detektirovanii temperature, and adjusts the time of reception of each signal, a band-filtered (22) RF.

7. The GLONASS receiver, comprising:
block (11) signals to receive multiple signals having different frequencies from a variety of satellites, respectively;
storage device (18) individual deviations products for the wound characteristics of the unit (11) of the reception signals, inherent in the individual deviation of the product of the block (11) signals, in the form of data unique characteristics of the unit (11) of the reception signals;
the storage device (14) for storing characteristics of group delay of each signal block (11) of the reception signal at the corresponding frequency in the form of data characteristics group delay and prior to saving the latency characteristics of the individual deviations of the product for each signal at the corresponding frequency, inherent in the individual deviation of the product of the block (11) signals, in the form of data characteristics of the individual deviations of the product; and
the transmitter (15) provisions for the correction of the time of reception of each signal having a respective frequency that is received by a block (11) signals, using the data characteristics of the group delay stored in the storage device (14)for correcting the time of reception of each signal on the basis of these unique characteristics, stored in a storage device (18) individual deviations of the product, and data characteristics of the individual deviations of the product stored in the storage device (14), and to calculate the current position in accordance with the updated time of admission,
the block (11) of the reception signal includes a band-Phil is Tr (22, 26) for filtering each signal in a predetermined frequency range, and
these characteristics of the group delay is determined for each frequency on the characteristics of the unit (11) receiving signals related to the bandpass filter (22, 26)

8. The GLONASS receiver according to claim 7, further comprising:
the detector (13) temperature to detect the temperature of the block (11) signal reception
when this storage device (14) stores the temperature dependence of the group delay of each signal block (11) receiving signals corresponding to the frequency data of the temperature dependence, and
thus the transmitter (15) position adjusts the time of reception of each signal based on the temperature of the block (11) signals, detektirovanii detector (13) temperature data and the temperature dependence, stored in a storage device (14).

9. The GLONASS receiver of claim 8,
in which the delay time of each signal at the corresponding frequency is different from each other when the signal is processed in block (11) signal reception
in which the delay time of each signal is defined as the group delay at the corresponding frequency, and
in which group delay at each frequency depends on the characteristics of the group delay block (11) signal reception
temperature unit (11) of the reception signals and the character who sticks delay the individual deviations of the product for a block (11) signals.

10. The GLONASS receiver according to claim 9, further comprising:
the processor (12) signals
the block (11) of the reception signal increases each received signal and performs the conversion with decreasing frequency and filtering each amplified signal to form a signal corresponding to the intermediate frequency,
at this point, the processor (12) converts signals each signal of the intermediate frequency in osnovopolozhniki signal at the corresponding frequency, performs correlation codes and the detection phase,
the tracking signal and the demodulation data in respect of each osnovopolozhnika signal to generate the corresponding signal demodulation,
at this point, the processor (12) signals attaches the time of reception of each signal, in which the corresponding signal unit (11) signal reception
thus the transmitter (15) position adjusts the time of reception of each signal based on the data characteristics of group delay data of the temperature dependence and data characteristics of the individual deviations of the product,
thus the transmitter (15) the provisions calculates pseudoresistance between the respective artificial satellites and GLONASS receiver in accordance with the updated time of admission, and
thus the transmitter (15) the provisions calculates the current position based on pseudoresistance to the of each artificial satellite.

11. The GLONASS receiver of claim 8, in which
block (11) receiving the signals includes:
block (24-25) frequency conversion for converting each frequency of the corresponding signal received from the corresponding artificial satellite to generate an intermediate frequency signal;
band-pass filter (22) for RF transmission of each signal having an appropriate frequency in a predetermined range before the signal frequency is converted by the block (24-25) frequency conversion; and
band-pass filter (26) for FC bandwidth at each signal having an appropriate frequency in a predetermined range, after the signal frequency is converted by the block (24-25) frequency conversion, and
thus the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency, a band-filtered (26) of the inverter, using the data characteristics of the group delay and the data of the temperature dependence, stored in a storage device (14).

12. The GLONASS receiver of claim 8, in which
block (11) receiving the signals includes:
block (24-25) frequency conversion for converting each frequency of the corresponding signal received from the corresponding artificial satellite to generate an intermediate frequency signal;
band-pass filter (22) for RF is propuskanija each signal, having an appropriate frequency in a predetermined range before the signal frequency is converted by the block (24-25) frequency conversion; and
band-pass filter (26) for FC bandwidth at each signal having an appropriate frequency in a predetermined range, after the signal frequency is converted by the block (24-25) frequency conversion, and
thus the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency band-filtered (22) RF, using the data characteristics of the group delay and the data of the temperature dependence, stored in a storage device (14).

13. The GLONASS receiver indicated in paragraph 12, in which the transmitter (15) position adjusts the time of reception of each signal at the corresponding frequency, a band-filtered (26) of the inverter, using the data characteristics of the group delay and the data of the temperature dependence, stored in a storage device (14).

14. The GLONASS receiver indicated in paragraph 12
in which the data of the temperature dependence include the relationship between the temperature of the block (11) of the reception signal and the frequency correction value,
when the group delay characteristics include the ratio of each frequency of the corresponding signal received by the unit (11) of the reception signal is s, and characteristic of the group delay at a predetermined standard temperature standard temperature data dependencies, and
in which the transmitter (15) position sets the value of the frequency correction in detektirovanii temperature using the data of the temperature dependence in accordance with detektirovanii temperature unit (11) signals, detektirovanii detector (13) temperature, adjusts the standard data of the temperature dependence using the specified values of the frequency correction to set the characteristic of the group delay at detektirovanii temperature, and adjusts the time of reception of each signal, a band-filtered (22) RF.



 

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1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: method involves receiving signals for each satellite, taking code and phase undifferentiated measurements (10), determining broadband uncertainties in a coherent manner for all satellites (11, 12, 13) using broadband shifts associated with satellites and obtained from a reference system, and determining the geographical position of a receiver using code and phase measurements and matched broadband uncertainties (16, 18). Determination of the geographical position involves determining (16) pseudo-distance through a non-ionosphere combination of code measurements and the difference between phase measurements with compensated broadband uncertainty, wherein the combination is noise-optimised. In order to determine pseudo-distance, satellite clock signal values associated with the non-ionosphere combination are obtained from the reference system.

EFFECT: high accuracy of position finding solution.

11 cl, 3 tbl, 3 ex

FIELD: radio engineering, communication.

SUBSTANCE: location coordinate values are calculated with low accuracy and if high-accuracy coordinate determination is impossible, an adjustment is made to the calculated low-accuracy values in order to determine the final coordinate values, wherein the adjustment used is the difference between calculated low-accuracy coordinate values and calculated high-accuracy coordinate values at a point in time when high-accuracy determination of location coordinate values was last possible, wherein the possibility of high-accuracy location coordinate determination is constantly checked, and if possible, coordinate values are calculated with high accuracy and the calculated adjustment is once more applied to the calculated high-accuracy coordinate values to obtain a new final location coordinate value.

EFFECT: providing smooth transition from one method of determining location coordinates to another without abrupt change in coordinate values, which ensures more reliable control of transportation vehicles and similar objects.

15 cl, 6 dwg

FIELD: radio engineering, communication.

SUBSTANCE: monitoring system (1) has at least one monitoring satellite (S2) lying on an orbit (O2) at a lower height than satellites (S1) in the group (2) of satellites so as to be able to receive positioning signals emitted towards the Earth (T) by said satellites (S1), and has a processing unit (11) for checking integrity of said received positioning signals using position information which is separated from said signals for this purpose.

EFFECT: providing users with information relating to quality of positioning signals by checking integrity of the monitored positioning system without local errors of positioning signals from monitoring stations.

10 cl, 5 dwg

FIELD: radio engineering, communication.

SUBSTANCE: method involves receiving signals from navigation spacecraft, amplification and correction thereof, monitoring codes and frequencies, calculating pseudoranges and pseudovelocities, correcting ionosphere errors and calculating coordinates of the consumer. The value of the ionosphere adjustment is determined by an empirical model of the required ionosphere parameter based on known parameters (geographic coordinates and time) and an additional parameter - solar activity index with one-time processing of the array of values of vertical PES in the ionosphere. Corresponding numerical values are selected from arrays of values of vertical PES, provided by different centres, followed by compression, filtration of the obtained array and forming an input numerical data array for subsequent calculation of ionosphere adjustments and absolute values of coordinates of the consumer. During one-time processing of the array of values of vertical PES in the ionosphere, input data from IONEX files are used to form a PES mode.

EFFECT: high accuracy of determining coordinates of a consumer by eliminating ionosphere errors.

4 cl, 5 dwg

FIELD: radio engineering, communication.

SUBSTANCE: steps are executed for providing modified format Global Navigation Satellite System (GNSS) Sensitivity Assistance (SA) information derived from predicted GNSS signal data according to a type of GNSS system, the type of GNSS system having a native formatting for GNSS signals, which has certain characteristics and the modified format GNSS SA information has the predicted GNSS signal data encoded without one or more of the characteristics used in the native formatting, and sending the modified format GNSS SA information over a communication link from a location server for a mobile station having a GNSS receiver capable of receiving and decoding native formatted signals according to the type of GNSS system.

EFFECT: providing assistance information signals, high sensitivity, associated with one or more positioning systems, and high sensitivity of the receiver due to prediction of Global Navigation Satellite System signal data.

65 cl, 4 tbl, 8 dwg

FIELD: physics.

SUBSTANCE: network element (M) for generating backup data has a control element (M.1) for generating back up data relating to one or more base stations (S1, S2) of at least one navigation system, and a transmitting element (M.3.1) for transmitting back up data over a communication network (P) to a device (R). The positioning device (R) has a positioning receiver (R3) for positioning based on one or more signals transmitted by base stations (S1, S2) over at least one of the said satellite navigation systems; a receiver (R.2.2) for receiving back up data relating to at least one navigation system from the network element (M); and an analysis element (R.1.1) adapted for analysing the received back up data in order to detect information relating to the status of the said one or more signals from the base stations (S1, S2) of the navigation system. The said information relating to the status of the said one or more signals from the base stations (S1, S2) contain indicators to the base station (S1, S2) to which the signal relates, and the said status, which indicates suitability of the signal for using. The device (R) is adapted such that, the signal indicated as unsuitable for use is not used for positioning.

EFFECT: increased accuracy of determining location by providing the positioning device with a list of defective signals transmitted by a specific satellite.

29 cl, 6 dwg, 5 tbl

FIELD: radio engineering.

SUBSTANCE: there determined is location of reference station in reference station according to signals received in it from complex of satellites, there determined is location of user receiver where user is located on the basis of measurement results received in it and on the basis of modification values calculated in reference station for correction of errors and there calculated is vector of relative position by calculating difference between location of reference station and location of the user.

EFFECT: improving determination accuracy of object location.

19 cl, 9 dwg

FIELD: physics.

SUBSTANCE: proposed method comprises reception of radio signals, analysis of output data of a group of receivers in combination with the data of weather pickups, and generation of navigation data quality signals and corrections to said data for its consumers.

EFFECT: higher probability of detecting intolerable abnormality of navigation satellite signals coming from all operated navigation systems GLONASS, GPS and GALILEO.

2 cl, 1 dwg

FIELD: physics.

SUBSTANCE: navigation system calculates positions which are corrected using complementary filters, each of which excludes data coming from one of the satellites when a fault is detected in one of the satellites. The complementary filter which excludes this satellite becomes the main filter and the other complementary filters are initiated by the new main filter.

EFFECT: reduced computational load in the navigation system.

5 cl, 2 dwg

FIELD: physics.

SUBSTANCE: to receive a radio-navigation signal modulated by a signal containing a BOC (n1,m) component and a BOC (n2,m) component, correlation between the current signal at the reception point and the modulating signal, and correlation between the shifted signal at the reception point and the modulating signal is carried out in a time interval with duration T. The current signal at the reception point is generated in form of a binary signal containing one segment of the BOC (n2,m) signal with overall duration (1-αA)T during the said time interval. The shifted signal at the reception point is generated in form of a binary signal containing one segment of the BOC (n1,m) signal with overall duration αBT during the said time interval.

EFFECT: high accuracy of synchronising a received signal with a reference signal.

13 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: mobile communication device uses a position finding method using a position finding filter, for example a Kalman filter which is initialised by measurements from reference stations, for example satellites and/or base stations, which can be obtained during different periods. Accordingly, the position finding filter can be used to evaluate the position without the need to first obtain at least three different signals during the same measurement period.

EFFECT: high efficiency and reliability of position finding for mobile receivers of a global positioning system in unfavourable signal propagation conditions when coincidence of range measurements may not occur on time.

40 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: request for auxiliary data issued by a mobile station is received at a server station and in response to the request, the server station sends to the server station ephemeral data as part of auxiliary data. After receiving the request for auxiliary data issued by the mobile station, the server station decides on the possibility of the mobile station reaching given accuracy for determining location is provided with transmitted ephemeral data. In the affirmative case, the server station sends transmitted ephemeral data to the mobile station. In the negative case, the server station sends to the mobile station long-term ephemeral data instead of transmitted ephemeral data as part of the requested auxiliary data. The long-term ephemeral data are extracted from forecasts of orbit satellites and they have validity interval which is sufficiently long compared to the ephemeral data transmitted by satellites.

EFFECT: high accuracy of position finding.

8 cl, 3 dwg

FIELD: physics.

SUBSTANCE: device includes a GPS/GLONASS receiver, an antenna, a user interface (keyboard, display, sound), a communication interface, nonvolatile memory, a microcontroller, consisting of a unit for calculating the coordinate vector from code measurements, a unit for calculating the increment of the coordinate vector from phase measurements, a filter unit based on a least-square method, a unit for calculating a specified coordinate vector from the filtration results, a unit for working with interfaces, where the microcontroller includes a unit for analysing stability of the phase solution, a unit for evaluating duration of measurements and geometrical factor of the constellation of satellites, as well as a correcting unit consisting of a counter for counting stable solutions and a decision unit for deciding on continuing measurements, interfaces for time marking external events and outputting the second mark.

EFFECT: highly accurate determination of coordinates of a receiver based on differential processing of phase measurements with complete elimination of phase ambiguity.

1 dwg

FIELD: physics.

SUBSTANCE: device includes a GPS/GLONASS receiver, an antenna, a user interface (keyboard, display, sound), a communication interface, nonvolatile memory, a microcontroller, consisting of a unit for calculating the coordinate vector from code measurements, a unit for calculating the increment of the coordinate vector from phase measurements, a filter unit based on a least-square method, a unit for calculating a specified coordinate vector from the filtration results, a unit for working with interfaces, where the microcontroller includes a unit for analysing stability of the phase solution, a unit for evaluating duration of measurements and geometrical factor of the constellation of satellites, as well as a correcting unit consisting of a counter for counting stable solutions and a decision unit for deciding on continuing measurements, interfaces for time marking external events and outputting the second mark.

EFFECT: highly accurate determination of coordinates of a receiver based on differential processing of phase measurements with complete elimination of phase ambiguity.

1 dwg

FIELD: physics.

SUBSTANCE: navigation is performed using low earth orbit (LEO) satellite signals, as well as signals from two sources of ranging signals for determining associated calibration information, where a position is calculated using a navigation signal, a first and a second ranging signal and calibration information. Also possible is providing a plurality of transmission channels on a plurality of transmission time intervals using pseudorandom noise (PRN) and merging communication channels and navigation channels into a LEO signal. The method also involves broadcasting a LEO signal from a LEO satellite. Also disclosed is a LEO satellite data uplink. The invention also discloses various approaches to localised jamming of navigation signals.

EFFECT: high efficiency and ensuring navigation with high level of integration and security.

14 cl, 34 dwg

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