Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements and and (G01S5/10)

G   Physics(394526)
G01   easuring; testing(233827)
G01S5/10                     Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements (g01s0005120000 takes precedence);;(18)
ethod for determining location of a quasi-continuous broadband source of radio-emission by mobile complex of radio-technical supervision // 2645297
FIELD: radio engineering and communication.SUBSTANCE: invention relates to radio engineering and can be used in the development of multi-position complexes of radio technical supervision. Method consists in: receiving a quasi-continuous broadband signal by antenna array at each receiving position of the radio technical supervision complex, forming intervals of observation with duration tsup., on which the correlation matrix of signals Rxx(m) of the input realization of a quasi-continuous wideband signal is calculated according to a certain formula, calculating a difference correlation matrix of signals ΔRxx(m) = Rxx(m)-Rxx(m+l), calculating the determinant of the difference correlation matrix with the subsequent formation and normalization of dependence for constructing position lines; calculating the correlation function of dependence by the corresponding formula, determining the path difference for each position with respect to the maximum of the enveloping mutual correlation function by the system of mutual correlation processing, estimating the coordinates of the source of quasi-continuous broadband signal by the time difference method on the basis of analysis of the time dependence of the determinant of the difference-correlation matrixes of the signals generated in the elements of the antenna arrays at receiving points of the radio technical supervision complex.EFFECT: achieved technical result of the invention consists in improved accuracy of positioning the sources of a quasi-continuous wideband signal by a complex of radio-technical supervision and reduced time required to locate sources of radio emission.1 cl, 5 dwg
ethod for determining coordinates of radio emission source // 2640032
FIELD: radio engineering, communication.SUBSTANCE: on the object, a radio signal (RS) is formed and transmitted in the form of three high-frequency harmonic oscillations with predetermined frequencies containing the specified high-frequency component and specified low-frequency components. When receiving and processing of RSs, the conditions specified in the method are satisfied. The RSs, received by each of the stations, are transmitted over the corresponding communication lines to a single center. It carries out quarter-phase reception of high-frequency RSs, received from each of the stations with specified frequencies of the local oscillators. The obtained analogue quarter-phase components are converted into digital quarter-phase components (DQPC). For each RS, DQPC, corresponding to the three-mentioned low-frequency harmonic oscillations, are sequentially formed. From the obtained DQPCs they form DQPCs, corresponding to the harmonic oscillations at difference frequencies, and based on the DQPCs they form DQPCs, corresponding to oscillation phase differentials with the same difference frequencies, but belonging to RSs from different stations. Based on the DQPCs formed by this method (considering time delays in forming and transmitting signals to communication lines) relative distances are expressly identified to the object from the phase centers of station antennas and, based on them, the spatial coordinates of the antenna phase center of the object are expressly identified.EFFECT: ensuring unambiguous definition of the spatial coordinates of the radio emission source, located in any point of space, with high accuracy.1 cl
ethod of determining coordinates of object // 2638572
FIELD: radio engineering, communication.SUBSTANCE: ground stations transmit radio signals (RS) in the form of three high-frequency harmonic oscillations with preset frequencies containing the specified high-frequency components and low-frequency components. During the generation and transmission of RSs, the conditions, specified by the method, are satisfied. A quarter-phase reception of a set of high-frequency RSs with a specified frequency of the local oscillator is performed at the object. The obtained analogue quarter-phase components are converted into digital quarter-phase components (DQPC). Subsequently DQPCs are formed for three low-frequency harmonic oscillations corresponding to the RSs transmitted by each station. From the obtained DQPCs they form DQPCs, corresponding to the harmonic oscillations on difference frequencies, and based on the DQPCs they form DQPCs, corresponding to oscillation phase differentials with the same difference frequencies, but belonging to RSs from different stations. Based on the DQPCs formed by this method (considering time delays in forming and transmitting signals to communication lines) relative distances are expressly identified to the object from the phase centers of station antennas and, based on them, the spatial coordinates of the antenna phase center of the object are expressly identified.EFFECT: ensuring unambiguous definition of the spatial coordinates of an object located in any point of space, with high accuracy.1 cl

Device for measuring phase difference of radio signals // 2631668
FIELD: radio engineering, communication.SUBSTANCE: invention can be used in radio direction finders, radio monitoring equipment, phase-locked loop systems, synchronization systems for various purposes and similar facilities and systems, in which the phase difference between the radio signals of radio sources is measured under noise of unknown intensity. The device contains two bandpass filters, three multipliers, three low-pass filters, two subtractors connected in a certain way.EFFECT: increasing the accuracy of measuring the phase difference of radio signals by increasing the signal-to-noise ratio by noise compensation.1 dwg
ethod of determining coordinates of object // 2624463
FIELD: radio engineering, communication.SUBSTANCE: plant host system, a stationary or moving integrally, disposable specify the manner associated with the host system three-dimensional Cartesian coordinate system are synchronously receive radio signals with known for each station in a time frame associated with the host system, the time offsets of reception of radio signals are recorded moments of reception times of radio stations determine the relative time delays reception of radio stations and correcting them according to the associated time offsets. According to the corrected relative time delays in the reception of radio signals, the relative ranges are determined and, according to the expressions given in the claims, the distances from the antenna phase centers (FCA) of the stations to the FCA of the object are determined. From the given spatial coordinates of the FCA of the stations and the indicated distances, the spatial coordinates of the FCA of the object in the indicated coordinate system are determined.EFFECT: increasing the accuracy and reliability of determining the spatial coordinates of objects.1 cl
ethod of determining coordinates of object // 2624461
FIELD: radio engineering, communication.SUBSTANCE: stations of a transmitting system that are stationary or moving as a unit, arranged in a predetermined manner in a three-dimensional Cartesian coordinate system associated with the transmitting system, synchronously transmit radio signals with known on the object for each radio signal by time shifts of transmission in a given time reference system associated with the transmission system, and on the object they are received in the time reference system associated with the object, the moments of the reception times are recorded, the relative time deposits the reception of radio signals from stations and correcting them taking into account time shifts. According to the corrected relative time delays in the reception of radio signals, the relative ranges are determined and, according to the expressions given in the claims, the distances from the antenna phase centres (FCA) of the stations to the FCA of the object are determined. From the given spatial coordinates of the FCA of the stations and the indicated distances, the spatial coordinates of the FCA of the object in the indicated coordinate system are determined.EFFECT: increasing the accuracy and reliability of determining the spatial coordinates of objects.1 cl
ethod of determining coordinates of object // 2624458
FIELD: radio engineering, communication.SUBSTANCE: stations of a transmitting system that are stationary or moving as a unit, arranged in a predetermined manner in a three-dimensional Cartesian coordinate system associated with the transmitting system, synchronously transmit radio signals with known on the object for each radio signal by time shifts of transmission in a given time reference system associated with the transmission system, and on the object they are received in the time reference system associated with the object, the moments of the reception times are recorded, the relative time deposits the reception of radio signals from stations and correcting them taking into account time shifts. According to the corrected relative time delays in the reception of radio signals, the relative ranges are determined and, according to the expressions given in the claims, the distances from the antenna phase centers (FCA) of the stations to the FCA of the object are determined. From the given spatial coordinates of the FCA of the stations and the indicated distances, the spatial coordinates of the FCA of the object in the indicated coordinate system are determined.EFFECT: increasing the accuracy and reliability of determining the spatial coordinates of objects.1 cl
ethod of determining coordinates of object // 2624457
FIELD: radio engineering, communication.SUBSTANCE: plant host system, a stationary or moving integrally, disposable specify the manner associated with the host system three-dimensional Cartesian coordinate system are synchronously receive radio signals with known for each station in a time frame associated with the host system, the time offsets of reception of radio signals are recorded moments of reception times of radio stations determine the relative time delays reception of radio stations and correcting them according to the associated time offsets. According to the corrected relative time delays in the reception of radio signals, the relative ranges are determined and, according to the expressions given in the claims, the distances from the antenna phase centres (FCA) of the stations to the FCA of the object are determined. From the given spatial coordinates of the FCA of the stations and the indicated distances, the spatial coordinates of the FCA of the object in the indicated coordinate system are determined.EFFECT: increasing the accuracy and reliability of determining the spatial coordinates of objects.1 cl

ethod of locating objects for local navigation systems // 2588057
FIELD: radar and navigation.SUBSTANCE: invention may be used in navigation systems and local area networks to control the movement of mobile objects in local zones navigation. Method is based on generation by a navigation object two high-frequency harmonic signals with different frequencies, their simultaneous radiation from navigation object and reception in several reference radio navigation points with known coordinates, generation in said points of differential frequency signals received from a navigation object high-frequency signals, transmitting generated differential frequency signals in central processing station, where phase difference of differential frequency signals coming from different reference points results of measurements of phase differences taking into account mutual arrangement of central receiving station and reference radio navigation points are recalculated in coordinates of navigation object, wherein both generated on navigation object harmonic signals, before radiation, are synchronously phase modulated with same pseudorandom binary sequence with phase deviation of 180°.EFFECT: high noise-immunity.1 cl, 2 dwg

Radio system // 2543470
FIELD: radio engineering, communication.SUBSTANCE: radio system (RS) comprises a ground radio signal transmitting system with N≥5 radio signal transmitting stations, coordinates of phase centres of antennae of which are known at radio facilities (RO). The transmitting stations are configured for synchronised ordered transmission of radio signals in series, with given separate features and with given time delays between radio signals, which provide ordered arrival of radio signals at the RO, located at any point in a service area. Each RO comprises a radio signal receiving device configured to receive and identify radio signals of the corresponding transmitting station, a recorder for recording the reception time thereof in a time reference system specified at the RO and an information system configured, based on said coordinates and reception time of radio signals in the series, taking into account said time delays between radio signals, to measure coordinates of phase centres of the antenna of the RO according to the proposed measurement equations.EFFECT: high efficiency and simplification of corresponding radio systems.1 dwg

ethod of transmitting and receiving radio signals // 2542659
FIELD: radio engineering, communication.SUBSTANCE: invention can be used to determine spatial coordinates of a stationary or mobile radio signal receiving radio facility (RO). Radio signals with given separate features and with given time delays between radio signals, which provide ordered arrival of radio signals at a RO, which is located at any point of the service area and known at the RO, are transmitted in series from N≥5 seriously numbered radio signal transmitting stations of a ground radio signal transmitting system, coordinates of phase centres of antennae of which are known at the RO, and the reception time of said signals is recorded in a time reference system specified at the RO. At the RO, coordinates of the phase centre of the antenna of the RO are measured according to proposed measurement equations based on said coordinates and reception time of identified corresponding stations of the ground radio signal transmitting system in a series, based on said given time delays between radio signals.EFFECT: high efficiency and simplification of corresponding radio systems.

Radio system // 2542579
FIELD: radio engineering, communication.SUBSTANCE: invention can be used to determine spatial coordinates of a stationary or mobile radio signal receiving radio facility (RO). A radio system (RS) comprises a ground radio signal transmitting system with N≥5 radio signal transmitting stations, coordinates of phase centres of antennae of which are known at the RO. The transmitting stations are configured for synchronised ordered transmission of radio signals in series, with given separate features and with given time delays between radio signals, which provide ordered arrival of radio signals at the RO, located at any point in a service area. Each RO comprises a radio signal receiving device configured to receive and identify radio signals of the corresponding transmitting station, a recorder for recording the reception time thereof in a time reference system specified at the RO and an information system configured, based on said coordinates and reception time of radio signals in the series, taking into account said time delays between radio signals, to measure coordinates of phase centres of the antenna of the RO according to the proposed measurement equations.EFFECT: higher efficiency and simplification of corresponding radio systems.1 dwg
ethod of transmitting and receiving radio signals // 2519296
FIELD: radio engineering, communication.SUBSTANCE: invention relates to communication engineering and can be used to determine spatial coordinates of a fixed or mobile radio facility (RO) receiving radio signals. The technical result is high efficiency and simplification of corresponding radio systems. A driving RO transmits radio signals with given individual characteristics. The radio signals are received by serially numbered driven RO. The time of reception is recorded and radio signals with individual features given for each driven RO are emitted after a delay time given individually for each driven RO. A receiving RO receives radio signals of the driving and driven RO, generates a series from the plurality thereof and, based on the given coordinates of phase centres of antennae thereof and time of reception of radio signals taking into account overall delay time, coordinates of the phase centre of the antenna of the receiving RO are determined.EFFECT: method does not require overall synchronisation of the plurality of radio facilities transmitting and receiving radio signals.
ethod of transmitting and receiving radio signals // 2519294
FIELD: radio engineering, communication.SUBSTANCE: invention relates to communication engineering and can be used to determine spatial coordinates of a fixed or mobile radio facility (RO) receiving radio signals. The technical result is high efficiency and simplification of corresponding radio systems. A driving RO transmits radio signals with given individual characteristics. The radio signals are received by serially numbered driven RO. The time of reception is recorded and radio signals identical to radio signals of the driving RO are emitted after a delay time given individually for each driven RO. A receiving RO receives radio signals of the driving and driven RO, generates a series from the plurality thereof and, based on the given coordinates of phase centres of antennae thereof and time of reception of radio signals taking into account overall delay time, coordinates of the phase centre of the antenna of the receiving RO are determined.EFFECT: method does not require overall synchronisation of the plurality of radio facilities transmitting and receiving radio signals.

ethod for detection of angular orientation in aircrafts // 2371733
FIELD: radio engineering.SUBSTANCE: array of aircraft condition vectors are expanded, estimate values of air speeds are defined for corresponding values of aircraft condition vector, varying estimate values of wind speed and wind direction, quality of decision made on wind parametres is assessed, results of calculations are compared with the threshold value, which defines a priori specified accuracy of wind parametres evaluation, when threshold conditions are met during the next iteration, the wind parametres are values corresponding to these conditions, and based on navigation triangle of speeds they calculate values of air speed and course angle, found parametres of wind are used in the next cycle of measurements as average values of limited sample of estimated wind parametres.EFFECT: expansion of its application field due to more complete accounting of aircraft flight parametres under conditions of destabilising factors effect, for instance wind.10 dwg

ethod of finding coordinates of radio-frequency radiation source // 2278395
FIELD: radio engineering.SUBSTANCE: method can be used for high precision measurement of coordinates of radio-frequency radiation sources which radiate continuous or quazi-continuous signals by means of flying vehicles. Method is based upon reception of signals from radio-frequency radiation sources at three flying vehicles, re-translation of signals to central processing board and calculation of coordinates of radio-frequency radiation sources from difference in radial velocities of flying vehicles. Signals being re-translated from flying vehicles are subject to additional mutual correlation processing. Difference in radial velocities is calculated on the base of measurement of compression factors determined by maximizing of mutual correlation function of signals re-translated from flying vehicles. Coordinates of radio-frequency radiation sources radiating wideband signals is provided.EFFECT: widened functional capabilities.

The method of determining the horizontal range goals for radiation scanning of the radar // 2217772
The invention relates to radar systems and can be used in ground-based and airborne radar mode passive detection and measurement of coordinates of the non-emitting targets
 
2551112.
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