Signal frequency generating device, automatically eliminating malfunctions in minimal time. RU patent 2507687.
 Signal transmission and reception apparatus and signal transmission and reception method / 2506705Invention relates to digital television (DTV) signal transmission/reception systems. The technical result is achieved due to that the signal reception method comprises steps of: receiving a signal transmitted in the radio-frequency band, which includes at least one radio-frequency channel, demodulating the received signal, analysing the signal frame preamble, which includes information layer 1 (L1) from the demodulated signal, reverse ordering information layer 1 bits, decoding the reverse ordered bits using an error-correction decoding scheme, which includes a shortening scheme and a perforation scheme, and obtaining physical layer channels (PLP) from the signal frame using the error-correction decoded information layer 1. |
 Device for synchronisation in radio communication system with pseudorandom operational frequency readjustment / 2506702Invention relates to radio engineering and can be used in communication systems with pseudorandom operational frequency readjustment. One device combines functions of filtering pseudorandom operational frequency readjustment (PROFR) signals, delay search and demodulation of PROFR signals and uses, during delay search, information PROFR signals having an identical form. The device includes an analogue-to-digital converter, a "window" signal processing unit, a fast Fourier transform unit, a PROFR demodulator, a signal weighted summation unit, a hypothesis selection unit, a control unit, a hypothesis selector, a PPS reference generator and a PSP generator. |
 Method, apparatus and system for transmitting information bits / 2504910Method of transmitting information bits includes a step of dividing the information bits to be transmitted into at least two groups. Further, according to the method, the information bits in each group to be transmitted are encoded to obtain at least two groups of encoded bits. Said at least two groups of encoded bits are combined to obtain a full sequence of encoded bits. The full sequence of encoded bits is obtained by dividing the encoded bits in each group into N subgroups and reordering said subgroups in each group of encoded bits. Subgroups in at least one group of the encoded bits are discontinuously distributed in the full sequence of encoded bits after reordering. |
 Multiple carrier acknowledgment signalling / 2504909As an example of a version of the invention, a method is disclosed for acknowledgment uplink signalling in a multiple-carrier mode at a remote terminal. First, a code word that jointly encodes acknowledgment signalling for at least two carriers from a multiple-carrier codebook that is stored in the remote terminal is determined. The multiple-carrier codebook includes eight code words that are defined to have a single carrier codebook as a sub-codebook of the multiple-carrier codebook, each code word of the eight code words having a length of ten. The multiple-carrier codebook provides a minimum Hamming distance of four among the eight code words. Second, an uplink signalling message that includes the determined code word is transmitted from the remote terminal to a wireless network node. |
 Device to generate periodic sequence of symbols that automatically eliminates occurring failures / 2504089Invention may be used in radio engineering devices using a shaper of periodic sequence of symbols (pseudorandom M-sequence, sequence of Gold symbols, etc.), repair of which is not possible during operation. The invention may be used to control quality of functioning of an onboard measurement system included within a scope of service instruments of spacecrafts or other radio devices. Device to generate a periodical sequence of symbols that automatically clears arising faults, comprises the following: a shaper of periodical sequence of symbols and n reserve shapers of periodical sequence of symbols, where n - integer number ≥1, at the same time each shaper of periodical sequence of symbols includes: a generator of periodic sequence of symbols; a meter of difference of a number N1 of single and a number of N0 zero symbols in the period of the periodical sequence of symbols; a control unit made as capable of disconnection of the shaper of periodical sequence of symbols from a source of power supply in case of a fault and connection of one of reserve shapers of the periodical sequence of symbols, which are in "unloaded" condition to the source of power supply; the secondary source of supply. |
 Phase error compensation device and phase error compensation method / 2502196Phase error compensation device (300, 400) has a first phase error compensation unit (305) and a second phase error compensation unit (200), placed after the first phase error compensation unit (305); the first phase error compensation unit (305) is configured to obtain a first estimated phase error (φpS) of a received signal based on the value of the received signal and a preset value of a pilot signal, shift the phase of the received signal by the value of the first estimated phase error (φpS) and transit the phase-shifted received signal to the second phase error compensation unit (200). |
 System and method for modulation and coding scheme adjustment for lte shared data channel / 2501170Actual number of orthogonal frequency division multiplexing (OFDM) symbols, Nos, used for the shared data channel is determined. A modulation order for transmission of data on the shared data channel is increased when the actual number of OFDM symbols Nos is less than 11 and decreased when Nos is more than 11. A modulation and coding scheme field (Imcs ) of control information of the shared data channel can also be determined. If 0≤IMCs+11-Nos≤28, the modulation order is modified by using a coefficient (IMCs+11-Nos) in a standardised modulation scheme. If it is determined that IMCs+11-Nos<0, the modulation order is set to quadrature phase shift keying (QPSK). If it is determined that IMCs+11-Nos>28, the modulation order is set to 64 quadtrative amplitude modulation (64QAM). |
 System for safety risk assessment and management / 2500070System for safety risk assessment and management consists of series-connected application loading means, a hosting environment, an authorised administrator, a first assessment mechanism, wherein second and third assessment mechanisms are connected to corresponding outputs of the authorised administrator interacting with a user interface; the system further includes series-connected expert data storage unit, risk optimisation mechanism, control mechanism, counteracting mechanism, the output of which is connected to the second input of the authorised administrator; the first, second and third input of the expert data storage unit is connected to the output of the corresponding assessment mechanism. |
 Control channel overhead for initiating independent transmission of channel quality indicator / 2497286Method involves generating a control channel signal containing a transport format and a channel quality indicator trigger for initiating transmission of the channel quality indicator through at least one terminal to a base station, and transmitting the generated control channel signal to at least one terminal; transmitting an aperiodic channel quality information message to the base station without multiplexing the aperiodic channel quality information message with user data, wherein the transport format is predetermined by a format for transmitting user data through at least one terminal to the base station, and the control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base, wherein transmission of the channel quality indicator should be initiated by at least one terminal based on the channel quality indicator trigger signal. |
 Control channel signalling using common signalling field for transport format and redundancy version / 2495529Invention suggests defining a common field for a transport format and redundancy version in control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. Furthermore, one shared field is provided in the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. |
 Device and method for sending and receiving information for detection of errors in communications system / 2258314Device has multiple cascade registers and multiple adders. During receipt of control information series operator forms a series of check connection bits and sends it to adders. After finishing of receipt operator serially adds given input bit to output bits of last register and outputs a result. Source value controller sends to registers a value selected from two source values. |
 Method for message transmission in feedback-incorporating system / 2259636On sending end of communication system data burst is coded by noise-immune code, service information is added to this code and transferred to communication channel. On receiving end frame synchronization of information sequence is made, noise-immune code is separated and decoded. Results of decoding are used to evaluate probability of message reception, and parameters characterizing quality of communication channel are determined. Channel quality is evaluated by average error probability per bit in communication channel and by error grouping coefficient; new length of data burst is chosen considering highest increase in speed of useful information transfer through communication channel. |
 Method for transferring information with use of adaptive alternation / 2265960Method includes continuously controlling quality of communication channel, on basis of results of which value of depth of alternation of word symbols of interference-resistant code is selected, interference-resistant code symbols alternation, interference-resistant code words and information packet, composed of symbols of several interference-resistant code words is transferred to communication channel, on receiving side symbols are shifted back as they were and words of interference-resistant code are reproduced, while average number of errors in interference-resistant code words is estimated, and selective dispersion of errors number in interference-resistant code words of received information packet is determined, and after receiving another information packet alteration of previous value of alternation depth is performed on basis of deviation of selective dispersion of errors allocation in words of received information packet from dispersion of binomial allocation law. |
 Turbo-decoding device and method / 2273093High-speed buffer memory is disposed between receiver buffer memory and turbo-decoding device and operates at same frequency as turbo-decoding device; decoding device reads out information bits stored in receiver buffer memory through high-speed buffer memory, enters delay for read-out information-bits for time required by turbo-decoding device, and then sends delayed information bits to decoding device including flexible input and flexible output of data incorporated in turbo-decoding device; information bit output is effected by receiver buffer memory at operating or clock frequency of turbo-decoding device. |
 Method and device for determining data transfer resources available for network connections / 2273958For determining amount of resources for data transfer and/or speeds of bits transfer for network connection, with known physical length of cable, measurement of energy spectrum is performed depending on transmission frequency for different types of modems by means of power measuring device, weakening is determined for different physical lengths and thicknesses of cable wires, depending on parameter of cross interference, number of sources and correcting coefficient on bass of energetic spectrum noise level is determined, while by means of gauss transformer module on basis of efficient signal levels and appropriate noise levels amount of data transfer resource is determined for different data transfer modulations and/or modulating codes for predetermined bit transfer speed, then available data transfer resource amount is corrected by means of correcting coefficient, including average deviation of stored amounts of data transfer resources from efficiency amounts of resources of data transfer, and on basis of stored efficient recourses for data transfer with utilization of known physical length of determined network connection available data transfer resource for appropriate network connection is determined. |
 Method for improved detection of speed errors in receivers with varying speed and device for realization of said method / 2284664In the method, frames are found for which data transfer speeds have been determined incorrectly, and processing is performed, providing for erasing of frames and/or clearing of memory to prevent expansion of distortion among multiple frames. Frames with erratically determined speeds of data transfer are found by checking unsanctioned transitions from one speed to another and reserve bits, confirming correctness of unused combinations of bits for filter and analyzing connections between transfer coefficients of fixed encoding table and transfer coefficients for linear prediction. |
 Symbol interlacing method / 2292654Method includes selection of operation mode in transmitter from at least one mode, while each operation mode is associated with a number of active carriers for transferring useful data, selection of interlacing symbol in aforementioned selected operation mode, usage of symbol interlacing in transmitter in relation with data element blocks, display of interlaced elements of data on active carriers of aforementioned selected operation mode, receipt of interlaced data elements in receiver, recognition in receiver of symbol interlacing symbol used during data transfer, selection of reversed interlacing symbol in receiver for match with recognized interlacing symbol and reverse interlacing in receiver of received data elements by means of selected reverse interlacing symbol. |
 Method and device for distributing resources in communication system with multiple inputs and outputs / 2294599In accordance to method, for possible data transmission one or more sets of terminals is formed, while each set includes unique combination of one or more terminals and matches hypothesis subject to evaluation. Formed additionally may be one or more sub-hypotheses for each hypothesis, while each sub-hypothesis matches certain assignment of several transmitting antennas to one or more terminals in hypothesis. Then efficiency of each hypothesis is evaluated, one of evaluated sub-hypotheses is selected, based on their efficiency. Then terminal (terminals) in selected sub-hypothesis is planned for data transmission, and after that data are encoded, modulated and transferred to each terminal, planned for transmission, via one or more transmitting antennas, assigned to terminal. |
 Reliable bit circuit for memorizing device of replaceable printer component / 2295754In accordance to suggested method for detecting error in data, received from memory device of replaceable printer component, ensured is first evenness control bit, associated with first data element. First data element and first evenness control bit are stored in memorizing device. Printer includes a set of electro-conductive lines. Memorizing device includes a set of bits. At least one of electro-conductive lines is associated with each bit. First data element and first evenness control bit are read from memorizing device. Electric test of at least one of electro-conductive lines is performed. Error is identified in first data element on basis of first evenness control bit, read from memorizing device, and electric test. Other inventions of group envelop printing system, two variants of realization of replaceable printer component for printing system and method for storing information in replaceable printer component are provided. |
 Transport-format data transfer / 2298878Channel coding and speed coordination TFCI indicator pointing to definite combination of cyclic redundancy code is generated in flexible layer one of GERAN network transmitter wherein data pointing to transport format combination are enoded and integrated with content data to be included in radio data burst using TFCI indicator generation process and information from medium access control layer. TFCI indicator is encoded in coding process and inserted in data stream by means of TFCI indicator insertion process. Each code incorporates more bits than respective TFCI indicator and unambiguously identifies TFCI indicator. Encoded TFCI indicator is expanded on pre-interleaved block with fractions disposed in fixed positions within each burst. Then interleaving is made by means of interleaving device. Encoded TFCI indicator used with 50% speed data transfer channel functions as central segment of encoded TFCI indicator used in respective 50% speed data transfer channel. Extra loss is negligible but FER characteristic is essentially improved compared with full-speed transfer codes due to enhanced useful load of content data bits. Amount of encoded TFCI data transferred in 50% speed mode ensures enhanced ratio of transport-format combination data encoding efficiency to content data encoding efficiency which is at same level as ratio in full-speed data transfer mode. |
FIELD: radio engineering, communication.
SUBSTANCE: signal frequency generating device includes: a signal generator, a generator frequency and amplitude instability measuring device, a control unit configured to disconnect the signal frequency generating device from the power supply, and connect one of the backup sets of the signal frequency generating device in case of a fault, and a secondary power supply.
EFFECT: providing minimum time for eliminating faults in radio devices which include a signal generator which automatically eliminates malfunctions.
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The invention relates to the field of radio measuring equipment and can be used for monitoring the operation of airborne command-and-measuring system, which is part of office appliances spacecraft, and other radio devices, repairs during the term of operation is not possible.
The prior art known to «the Device for detecting errors» (patent RU 2279184, publ. 27.09.2004)that uses systematic properties of M-sequences, which allows to measure the number of errors occurring in the generator M-sequence during operation, determine the places of occurrence of errors and make the diagnosis system with the accuracy of the block in which the problem has arisen.
The prior art known to «the Device for detecting errors» (patent RU 2276835, publ. 27.09.2004), which refers to the radio measuring technique can be used to isolate the erroneous character generated by the M-sequences, has high reliability, performance, and works in a wide range of frequencies.
The disadvantage of this device is the inability to restore them using the standard operation of radio-electronic equipment, repair of which operation is not possible.
The technical result of the claimed invention is the minimum time of disconnect the unit of formation of frequency signal from the power supply when a fault occurs, the restoration of the standard operation of radio-electronic equipment, repair of which operation is not possible.
The technical result is achieved by the fact that the frequency of the signal automatically corrects faults in the shortest time, includes:
- signal generator;
- meter instability of frequency and amplitude of the generator;
- control unit, made with the possibility of power device formation of frequency signal, and connections to one of the duplicate sets of devices forming the frequency of a signal in case of failure;
secondary power supply;
the output of the generator signal is connected to the first input of the meter instability of frequency and amplitude of the generator, the output of which is connected to the first input of the control unit, the second input of which is connected with the third exit of the secondary power source (VIP), the first and second outputs of which are connected with the input of a signal generator and a second entrance meter instability amplitude and frequency of the generator, respectively, the third entrance of the control unit is the connector of the power supply voltage, and his fourth and fifth inputs are used to signal the disconnection and connection to power supply devices of formation of frequency signal when conducting acceptance works and tests, the first output of the control unit connected to the input of secondary power source (VIP), and the second output is used to supply power source voltage at the input of a backup set device formation of frequency signal, the third entrance of the meter instability of frequency and amplitude generator enter the nominal frequency of the device formation of frequency signal, fourth entrance meter instability of frequency and amplitude of the generator is used for input limit value of frequency devices forming the signal frequency.
In a preferred embodiment, the meter instability of frequency and amplitude of the signal generator provides a schema «And 1 », shaper control signal circuit «And 1 », measuring the amplitude of the signal generator, frequency divider signal generator, the first frequency counter, shaper of the sequence of rectangular pulses of fixed duration, the first pulse shaper, the second pulse shaper, frequency divider 2, second frequency counter, the first binary adder, the second binary adder, the scheme «And 2 », and the output schema «And 1 » connected to the input of frequency divider signal generator, the output of which is connected with the entrance of the first frequency counter, the first output of which is connected to the input shaper of the sequence of rectangular pulses of fixed duration, and the second output is connected to the inputs of the first and second formers pulse outputs are connected with the input frequency divider by 2, the output of which is connected to the first input of the second frequency counter, the second input of which is connected to the output schema «And 2 », and the output is connected to the second input of the first binary adder, the output of which is connected to the second input of the second binary adder, input-output signal shaper control scheme «And 1 », the frequency divider signal generator, the first frequency counter, the first input-output scheme «And 2 », are connected among themselves and with the release of the sequence of rectangular pulses of fixed duration, input-output meter amplitude of the signal generator, the second input-output scheme «And 2 », the first input of the circuit «And 1 » are interconnected and are the first and the second inputs meter instability of frequency and amplitude of the signal generator connected with the output signal generator and a second output FORK accordingly, the second entrance scheme «And 1 » is connected to the output signal shaper control scheme «And 1 », the first inputs of the first and second binary adders are respectively the third and fourth inputs meter instability of frequency and amplitude of the signal generator, the outputs of the second binary adder and measuring the amplitude of the signal generator are interconnected and are the output of the meter instability of frequency and amplitude of the signal generator.
Meter amplitude of the signal generator consists of the first and second converters of frequency-voltage», the inlets of which are input amplitude of the signal meter generator output of the second circuit «And 2 », and the outputs are connected to the inputs of the first and second amplifiers, respectively, inputs, outputs of which are interconnected and outputs are connected to the inputs of the first and second amplitude detectors accordingly, the outputs of which are coupled with a first and a second entrance scheme stress analysis, respectively, and the output schema stress analysis is the output of the meter amplitude of the signal generator connected to the first input of the control unit.
Signs and essence of the claimed invention are explained in the subsequent detailed description, drawings, which show the following:
On figure 1, functional scheme of the formation of the frequency of the signal automatically eliminating the faults in the shortest time, where:
1 - signal generator;
2 - meter instability of frequency and amplitude of the generator;
3 - the control unit, which turns off the power from the generator signal and connection one of the backup sets in case of failure;
4 - secondary power source.
Figure 2 - functional diagram of a meter instability of frequency and amplitude of the signal generator, where:
5 - scheme «And 1 »;
6 - shaper control signal circuit «And 1 »;
7 - meter amplitude of the signal generator;
8 - frequency divider signal generator;
9 - the first frequency counter;
10 - shaper of the sequence of rectangular pulses of fixed duration;
11 - the first pulse shaper;
12 - second pulse shaper;
13 - frequency divider 2;
14 - second frequency counter;
15 - the first binary sum;
16 - the second binary sum;
17 - scheme «And 2 ».
Figure 3 - the formation of frequency measurement.
Figure 4 - the scheme, which allows for switching on and off schemes «And 1 ».
Figure 5 - the stress distribution on the elements of the meter amplitude and frequency instability.
Figure 6 - the amplitude-frequency response contours U K1 and K2 U .
Figure 7 - Scheme meter amplitude of the signal generator, where:
18 - the first inverter frequency-voltage»;
19 - the second Converter frequency-voltage»;
20 - the first amplifier;
21 - second amplifier;
22 - the first amplitude detector;
23 - the second amplitude detector;
24 diagram stress analysis.
On Fig.8 - functional diagram of the control unit, where:
25 - pulse generator;
26 - power pulses.
Figure 9 - integration scheme set of devices forming the frequency of the signal automatically eliminate faults in the shortest time.
The principle of construction of devices forming the frequency of the signal automatically eliminating the faults of the minimum time is shown in the functional diagram of a meter instability of frequency and amplitude of the signal generator in figure 2, where the following notation:
U g - amplitude signal generator;
- calculate the number of M1 the known values of f g and N 1 ;
- formation of a rectangular pulse fixed duration t when reaching the first counter frequency MF 1 number M1 - k;
- disabling the first counter frequency MF 1 from the generator;
connection of a second counter frequency MF 2 to the generator;
- formation of a signal initial installation frequency divider N 1 , first and second counter frequency MF 1 and 2 MF ;
- determination of the frequency of measurement f and equal to the number of periods frequency f g laid on the time interval τ;
connection scheme «And 1 » to the generator signal.
By the number of pulses is terminated with a termination of a rectangular pulse.
Consider figure 3, to explain the formation of frequency measurement, where the following notation:
- the maximum values of the frequency of the oscillator and frequency of measurement:
f g max = f g n + Δ f max ; f and max = k Buna N 1 + n 0 + Δ f max- nominal frequency of the oscillator and frequency of measurement:
f g n = k Buna N 1 + n 0 ; f and n = k Buna N 1 + n 0 .- minimum values of the frequency of the oscillator and frequency of measurement:
f g min = k Buna N 1 + n 0 - Δ f min ; f and min = k Buna N 1 + n 0 - Δ f minFrom figure 3 it follows that the zero values of frequency measurement is the same as the ordinate equal (M1-k)·N 1 .
In normal operation, the generator signal frequency measurement satisfies the inequality:
f and n - Δ f min ≤ f and ≤ f and n + Δ f max (4)Therefore, the frequency of measurement is the sum of the periods of the generator (k·N 1 +n 0 ) and the deviation of the frequency of the oscillator from the nominal value.
Shaper of the sequence of rectangular pulses, the scheme «2 » and the second frequency counter MF 2 perform the function of the discriminator (discriminator) values of the measured frequency, since the number N and the pulse output is directly proportional to the frequency f and :
N and =τf and
The measured number of pulses N and it seems the whole n-bit binary number. Obviously, the duration of τ rectangular pulse should be equal to the following amount:
τ = f and max Buna T g = ( k Buna N 1 + n 0 + Δ f ) Buna T g (5)The first and second conditioners pulses U M2 , U M3 , diodes D 1 D 2 and frequency divider 2 are designed to create a signal initial installation of a second counter frequency MF 2 . In normal operation, the generator of signals the measured frequency f and belongs to the interval: f and belongs to the interval[F і ,F ].
The measured deviation of the frequency F of the nominal values of f GBV during operation equipment is determined by the formula:
Δ f = f and - f and n ,where (6)
f Institute of theoretical value frequency of measurement corresponding to the nominal value of the frequency of the generator, which is taken equal to the arithmetic mean value of frequency f і and f :
f and n = f and min + f and max 2 .In the generator signal may experience the following issues:
- the measured deviation of the frequency F of the nominal value does not belong to the interval [F min ,F max ]; i.e. |F and ]>|Δ DOP |
- measured value of the amplitude U g signal generator is not belongs to the interval [U min U max ].
In these cases, taken the decision to switch off the generator from the power source and the inclusion of a backup set.
To avoid error in the formation of frequency measurement, it is necessary to use RF and microwave elements providing high steepness of the rise and fall of the front and rear fronts rectangular pulse with a constant length.
Figure 4 shows a circuit that provides switching on and off schema «Mi».
The normal state schemes «And 1 » to «open»for the duration of a rectangular pulse duration τ scheme «And 1 » must be «closed». For this reason, the scheme uses two voltage: positive U 1 and U negative 2 . Transistor Tr is in the saturation mode, the voltage on the collector not significantly different from zero, the control voltage U panel >0 and scheme«, And 1 » open». Under the action of a rectangular pulse U τ transistor closed, and the voltage on the manifold increases, the control voltage becomes negative scheme«, And 1 » close» on the time s actions rectangular pulse.
Figure 5 shows the stress distribution on the elements of the meter amplitude and frequency instability, where the following notation:
u t - a rectangular pulse fixed duration τ.
t 0 (M2),t 1 (M3) - intervals, corresponding to the numbers M2, M3 full populations frequency divider N 1 .
t 2 (M1) - a time interval corresponding time counting the number of M1 full populations frequency divider N 1 .
T - the period of operation of the generator signal.
Analog signal processing for high accuracy frequency disable use high-q LC filter for highly stable generators - quartz filters. To eliminate the influence of transients in circuits of the value of the coefficient k>1 should ensure the implementation of inequality:
τ & GE t ..
The advantage of this method is that in the implementation of the second counter MF 2 and scheme of its reset is not required. The signal from the output of the circuit «And 2 » goes to the converters of frequency-voltage», which can be used single oscillatory contour.
6 points 1 ; 2; 3the right slope of the amplitude-frequency characteristics of the circuit U Q1 correspond to pairs of numbers (f ,U і ), (f GBV U GBV ), (f і ,U ). Points 1; 2; 3-left slope of the amplitude-frequency characteristics of the circuit U K2 correspond to pairs of numbers (f і ,U і ), (f GBV U 2n ), (f ,U ). Voltage circuits goes to the first or second amplifiers Of C1 or C2 , «locking» offset voltage of which is equal to U 1max =U 2max , then the amplitude detectors, scheme of stress analysis and control unit for signal parrying the malfunction occurred (see Fig.7).
Offset voltage is equal to U , if the channel I assesses the maximum permissible amplitude of Ur signal generator, and is equal to U і , if the channel II assesses the minimally permissible amplitude U g .
During operation of equipment of the following situations:
1. U g belongs to the interval[U і ,U ]if the voltage is not present on the output channel I and is present at the output channel II (0,1);
2. U g >U , if the voltages are present on the outputs of the I and II channels (1,1);
3. U <U і , if no voltage on outputs I and II channels (0,0).
4. The voltage is present at the output of the I and there is no output channel II (1.0) - malfunction in the channel II. This situation is also prohibited.
Permitted is 1 the situation of the prohibited articles 2, 3, 4.
Having convinced by the stress analysis, that the output channel voltage U I d is missing and the output channel of the II contains, is formed offset voltage supplied to the control unit and «locking» power pulses. Otherwise, formed voltage, provides turn the amplifier on pulses.
On Fig.8 shows the functional diagram of the control unit.
Signals acting on inputs and outputs of the control unit:
Ref. 1 - offset voltage;
.1 - voltage power source (PS), supplied to the VIP signal generator;
.2 - voltage VIP;
.2 - IP voltage, supplied to the input of the backup signal generator kit;
's off - signal disable automatic generator in case of failure;
.4, .5 signals disconnection and connection to power supply generator at holding of acceptance and other tests, respectively.
If a fault occurs in the oscillator, in which f g >f or f <f і , or U g >U , U <U і? the circuit output stress analysis occurs offset voltage supplied to the control unit on the base of transistor amplifier pulse, power pulse begins to work, and the generator signal is automatically disconnected from the power supply relay contacts, managing winding of which receives signals from the amplifier pulse, with the help of other contacts of the relay standby generator set signal connects to the signal source. Figure 9 shows the circuit of inclusion kit signal frequency signals, automatically eliminate faults in the shortest time.
The application of voltage of IE on the set №1 instrument frequency signals, automatically eliminating the faults of the minimum time contacts, 2-3 relay R are closed. Connected to power supply kit # 1 starts working. If a fault occurs automatically connects to IP the first backup set (kit №2) and off set №1. At refusal kit №2 the operation of the radio provides a second backup set (kit №3).
Included in the radio unit reception and processing of information (PFP) should work with any of the sets of devices forming the frequency signals, automatically eliminate faults in the shortest time. To implement this, the composition of the radio-technical devices introduced a high-frequency transformer, number of input and output windings is equal to the number of sets forming devices frequency signals, automatically eliminate faults in the shortest time. At any time input of the PFP performing the processing of the received signals, the signal is coming from one of the sets of devices forming the frequency signals, automatically eliminate faults in the shortest time.
Thus, the claimed technical result is achieved in the form of provision of a minimum time to troubleshoot a non-working condition for the radio, which include the processing of signals frequency, automatically corrects the faults in the shortest time.
Digital method used to determine the deviation of the frequency of the oscillator from the nominal value, provides high accuracy of measurements in a wide range of frequencies.
Modern methods of designing and manufacturing of the equipment allow to create a chip corresponding to the schemes described above, which may be used for monitoring the operation of airborne command-and-measuring system, which is part of office appliances spacecraft, and other radio devices, repairs during the term of operation is not possible.
1. The frequency of the signal automatically corrects faults in the shortest time, including: - a signal generator; - meter instability of frequency and amplitude generator control block, made with the possibility of power devices of formation of frequency signal, and connections to one of the duplicate sets of devices forming the frequency of a signal in case of a fault; - secondary power supply with output signal generator is connected to the first input of the meter instability of frequency and amplitude of the generator, the output of which is connected to the first input of the control unit, the second input of which is connected with the third exit of the secondary power source (VIP), the first and second outputs of which are connected with an entrance a signal generator and a second entrance meter instability of frequency and amplitude of the generator, respectively, the third entrance of the control unit is the connector of the power supply voltage, and his fourth and fifth inputs are used to signal the disconnection and connection to power supply devices of formation of frequency signal when conducting acceptance works and tests, the first output of the control unit connected to the input of secondary power source (VIP), and the second output is used to supply power source voltage at the input of a backup set device formation of frequency signal, third entrance meter instability of frequency and amplitude of the generator is used for input to the nominal frequency of the device formation of frequency signal, fourth entrance meter instability of frequency and amplitude of the generator is used for input limit value of frequency devices forming the signal frequency.
2. The device of claim 1, wherein meter instability of frequency and amplitude of the signal generator provides a schema «And 1 », shaper control signal circuit «And 1 », measuring the amplitude of the signal generator, frequency divider signal generator, the first counter frequency shaper of the sequence of rectangular pulses of fixed duration, the first pulse shaper, the second pulse shaper, frequency divider 2, second frequency counter, the first binary adder, the second binary adder, the scheme «And 2 », and the output schema «And 1 » connected to the input frequency divider signal generator, the output of which is connected with the entrance of the first frequency counter, the first output of which is connected to the input shaper of the sequence of rectangular pulses of fixed duration, and the second output is connected to the inputs of the first and second formers pulses the outputs are connected with the input frequency divider by 2, the output of which is connected to the first input of the second frequency counter, the second input of which is connected to the output schema «And 2 », and the output is connected to the second input of the first binary adder, the output of which is connected to the second input of the second binary adder, input-output signal shaper control scheme «And 1 », the frequency divider signal generator, the first frequency counter, the first input-output scheme «And 2 », are connected among themselves and with the release of the sequence of rectangular pulses of fixed duration, input-output the meter of the amplitude of the signal generator, the second input-output scheme «And 2 », the first input of the circuit «And 1 » are interconnected and are the first and the second inputs meter instability of frequency and amplitude of the signal generator connected with the output signal generator and a second output VIP accordingly, the second input of the circuit «And 1 » is connected to the output signal shaper control scheme «And 1 », the first inputs of the first and second binary adders are respectively the third and fourth inputs meter instability of frequency and amplitude of the signal generator, the outputs of the second binary adder and the meter of the amplitude of the signal generator are interconnected and are the output of the meter instability of frequency and amplitude of the signal generator.
3. The device according to claim 2 or 3, in which the meter amplitude of the signal generator consists of the first and second converters of frequency-voltage», the inlets of which are input meter amplitude of the signal generator the output of the second circuit «And 2 », and the outputs are connected to the inputs of the first and second amplifiers, respectively, inputs, outputs of which are interconnected and outputs are connected to the inputs of the first and second amplitude detectors, respectively, the outputs of which are coupled with a first and a second entrance scheme stress analysis, respectively, and the output schema stress analysis is the output of the meter amplitude of the signal generator connected to the first input of the control unit.