Frequency-adaptive wireless link to transfer medium flows discrete information

 

(57) Abstract:

The proposed frequency-adaptive wireless link relates to techniques for radio communications. The technical result is the development of a medium-frequency-adaptive radio with DTMF transmission method, without reducing the bandwidth of the channel, when the deterioration of the noise fixed frequency communication. This objective is achieved in that in the frequency-adaptive radio link is implemented by a method independent of frequency adaptation for each subchannel frequency group signal. The application of this method allows to eliminate interruptions during switching frequency subchannels, struck interference and thereby reduce the flux density changes fixed frequency transmission and to increase the throughput of the radio link. To implement this method, the composition of the frequency-adaptive radio link containing the receiver, transmitter, radiometric block, blocks modulators and demodulators blocks of the encoding and decoding of the instructions, the blocks of the reference frequency transmission and reception, the shaping unit handling code, inputs switching units reference frequency transmission and reception. Expanded the eye control computing devices, what led to the change in the structure and relationships of these blocks. 7 C.p. f-crystals, 8 ill.

The proposed frequency-adaptive wireless link relates to techniques for radio communication and can be used to improve the reliability of communication when the transfer medium flows discrete channel information decameter radio.

Known adaptive wireless link communication (Ivankin P. A., Kane, E. R., Lebedinsky E. C. AU USSR N 661824, 21.10.76) in the receiver, demodulator, decoder, terminal transceiver block, the block Association signals, encoder, modulator, transmitter; adaptive wireless link (Lunev B. C., Staroverov A. M. , Tolmachev P. T. AU USSR N 801279. 30.03.79), including encoder, modulator, transmitter, receiver, block selection, the unit of coherent processing, the decoder unit selection frequency, a control unit, the driver commands and the switch; a radio control system with adaptation frequency (Gut R. E. AU USSR N 720978. 16.05.77), containing the first and second receivers of feedback signals, block frequency, the transmitter, the input of the modulator, receiver, demodulator output, the block select transmission channels, the first and second shapers feedback signals, the control unit channel quality; and mnookin is diastasi adaptation frequency (Skuratov B. N., Gusarov E. N., Antonina M. C., Bovina C. A. AU USSR N 1022321 published 07.06.83), adaptive radio line transmission of discrete information (Vinogradov A. N. , Sisina A. B. AC USSR N 1020999 published 30.05.83), the communication system adapting frequency (Kliot E. I., Konovalov, C. AU USSR N 1667265 published 30.07.91).

A common shortcoming of all these analogues is the low data transmission rate, due to megalocephaly radio.

Closest to the proposed facility by the number of similar features and functions is a frequency-adaptive wireless link (see Military radio system. H. 1. Century Century Ignatov, Y. P. Kilimnik, I. N. Nicholas, C. F. Pivovarov, V. K. Prokhorov, A. Repin, N. P Skripnik, A. N. Balls and others /edited by centuries Ignatova. L.; YOU, 1989, pp. 297-301), which contains a radio receiver comprising a high-frequency path, the frequency Converter and the frequency synthesizer, the unit of analysis and frequency selection in the composition of the radiometric block and block selection of the optimal subchannel, the unit controlling a casting device, the coding block commands block decoding commands, the block switching signal transmitter, and terminal equipment DTMF modem to send shredneck is from a block of demodulators unit reference frequency reception unit regeneration and unification of the information block of the reference frequency transmission block modulators and block the formation of manipulation code, and the high-frequency signal output path connected simultaneously to the signal input radiometric unit and the signal input of the frequency Converter, to the second input of which is connected to the output of the frequency synthesizer and the output of the frequency Converter is connected simultaneously to the inputs of the unit demodulators and block decoding commands to the rest of M, where M=12, the signal input unit demodulators connected matching M signal outputs of the block of the reference frequency reception and M outputs of the unit demodulators are connected to respective inputs of the regeneration unit and the Association information, the first output of which is the output of the frequency-adaptive radio link, and a second output connected to the input unit of the control of a casting device, N control output radiometric block, where N is determined from the condition in which the F - bandwidth broadband channel receiver, f is the width of the range group signal, a function of the integer nearest to the value in brackets connected to correspond to ntrolle-casting device, the first information output unit selecting the optimal subchannel is connected to the input of the frequency synthesizer and the second information output connected to the input of the coding block of commands, the output of which is connected to the first input of the switching signal, the output of which is connected to the first input of the transmitter to the second input of which is connected the output of block decoding commands, the input processing unit handling code is input frequency-adaptive radio, M information output processing unit handling code is connected to the information input unit modulators, the signal M to the input of which is connected M signal outputs of the block of the reference frequency transmission, and the output of modulators connected to the second input of block commutation signals.

The disadvantage of this radio is the reduction in bandwidth with increasing load the selected frequency communication interference due to the large loss of time on the operating frequency tuning transmitters. This is because the use of communication relatively broad band of frequency f = 3.1 kHz, which are uniformly placed range group signal generated by the block modulators, entails high Aim of the present invention is to develop a frequency-adaptive radio link, can not reduce the bandwidth by increasing the load of the selected frequency communication interference.

This objective is achieved in that the frequency-adaptive radio link that contains a radio transmitter, a radio receiver, containing the frequency synthesizer and the frequency Converter, and the signal output of the radio connected to the signal input unit demodulators, the block selecting optimal subchannels, radiometric block N control output which is connected to the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels, where the number of inputs/outputs N is determined from the condition in which f is the bandwidth of the subchannel, F - bandwidth broadband channel receiver, function integer nearest to the value in parentheses the regeneration unit and integrating information M information input of which is connected to the corresponding M data outputs of the unit demodulators, where the number of inputs/outputs M is determined from the condition M=K-S+C, where S=1, 2, 3,... is the number of test subchannels determined necessary correcting ability of the code, C=1, 2, 3,... is the number of command of subchannels defined need the Vwithallowable transmission rate information in the subchannel, the function of a larger whole that is the closest to the value in the parentheses, the first information output unit regeneration and unification is the output of the frequency-adaptive radio link, the control unit computing device, the blocks of the reference frequency transmission and reception, the coding block, the block decoding commands, the control input of which is connected to the second input of the radio transmitter, the shaping unit handling code, the first data input which is the input of frequency-adaptive radio, and his M information outputs connected to the corresponding M information input unit modulators, added switching units reference frequency transmission and reception. The signal output of the radio is additionally connected to the input of radiometric unit. The first, second and third information output unit selecting the optimal subchannels connected to the corresponding information unit coding teams. M control output unit selecting the optimal subchannels connected to the corresponding M control inputs of the switching unit reference frequency reception. N signal inputs of the switching unit reference frequency reception path frequency reception connected to respective M inputs of the unit demodulators. The information output of the coding block of commands is connected to the second information input processing unit handling code. The second information output unit regeneration and consolidation of information connected to the information input unit of decoding commands. M control output block decoding commands connected to the corresponding M control inputs of the switching unit reference frequency transmission, N signal inputs of which are connected to the respective N signal outputs of the block of the reference frequency transmission. M signal outputs of the switching unit reference frequency transmission connected to respective M signal inputs of the block modulators. M signal outputs of the regeneration unit and associations connected to the corresponding M inlet control computing devices. M control output of the control unit computing devices connected to respective M inputs of the second group of control inputs of the block selecting optimal subchannels. M+1 output unit of the control computing device connected to the input of the frequency synthesizer radio receiver and a fourth input block coding teams. Signal output unit modulators connected to the transmitter input.

Block regenerate is the or Converter, the first storage register, the second register storage element And the detector errors, digital comparator, decoder, K+1 adders modulo two, K-1 buffer triggers the multiplexer. The inputs of M integrators are information input unit regeneration and consolidation of information. To the inputs M triggers connected to the outputs of the respective integrators. To M inputs of the analog multiplexer connected to the outputs of the respective integrators. To the input of the analog-to-digital Converter connected to the output of the analog multiplexer. The p outputs of the counter are connected to the control inputs of the analog multiplexer, where the number of outputs of the counter R is determined from the condition P = [1 + log2-(M)] , where [.] denotes the integer part of the number. The first group of information inputs of a digital comparator connected to the outputs of the analog-to-digital Converter. To the information inputs of the first storage register connected to the outputs of the analog-to-digital Converter and its control input connected to the output of the digital comparator. The outputs of the first storage register connected to the second group of information inputs of the digital comparator. To the R inputs of the second storage register connected to the corresponding outputs scotcharoo register storage. To the inputs of the error detector connected to the outputs of the respective flip-flops. To the first input element And is connected to the output of the counter overflow to the second input connected to the output of detector errors. The output element And is connected to the control input of the decoder. To the first inputs To+1 adders modulo two connected outputs of the respective triggers, and to the second inputs the respective outputs of the decoder. The inputs To+1 trigger connected to the outputs of the respective adders modulo two, and to the control inputs connected in parallel to the output element And. To the inputs of the multiplexer connected to the outputs corresponding To the triggers, and its output is the first information output unit regeneration and consolidation of information. Access To the+1 trigger is the second information output unit regeneration and consolidation of information. M outputs of the decoder are the signal outputs of the regeneration unit and integrating the information.

The control unit computing device includes M first digital Comparators, M of the first counter, the first and second sensors code threshold, the element OR the second digital comparator, second, third and fourth counters. Counting input M of the first counter are input unit corresponding first digital Comparators, where Q1 is determined by the expression Q1= [log2(VwithT1)] , where T1the time interval of the analysis of the suitability of subchannels defined by the desired precision of the estimate of the probability of error. Q1 outputs of the first sensor code threshold is connected to the second group of inputs of the respective first digital Comparators, the outputs of which are the first M outputs of the control unit computing devices. The inputs of the element OR connected to the outputs of the respective first digital Comparators. The output of the second digital comparator is M+1 output block control computing devices. Q2 outputs of the second counter connected to the first group of inputs of the second digital comparator, where Q2 is determined by the expression Q2 = [log2(R T2)], where R is the maximum flux density shifts of frequency subchannels, T2the time interval of the analysis of the suitability of a fixed frequency determined desired communication reliability. The counting input of a second counter connected to the output of the OR. Q2 outputs of the second sensor code threshold is connected to the second group of inputs of the second digital comparator. The output of the third counter connected simultaneously to the control inputs of the respective M first counter and according to the passages of the second counter and the second digital comparator.

The block selecting optimal subchannels includes site ranking, site management and site numbers optimal subchannels. N inputs of node ranking are the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels. M inputs of the control unit are the corresponding M control inputs of the second group of control inputs of the block selecting optimal subchannels, and the information output is the first information output unit selecting the optimal subchannels. The first output node issuing non-optimal subchannels is the third information output unit selecting the optimal subchannels and simultaneously connected to the first control input of the control unit. The second output node issuing non-optimal subchannels is the second information output unit selecting the optimal subchannels. The remaining M outputs of the node numbers of the optimal subchannels are control outputs block selection of the optimal subchannels. The first and second control outputs of node ranking is connected to the first and second control inputs of the node numbers of the optimal subchannels. First, second and third control outputs node vituki, and the fourth control output connected to the second control input of the control unit. The first control output of the control unit is connected to a fourth control input node ranking, and the second control output connected to the third control input of the node numbers of the optimal subchannels. The remaining M control output control unit connected to the M inputs of the node numbers of the optimal subchannels.

Site ranking includes a counter, an analog multiplexer, an analog-to-digital Converter, L elements OR, a key element in the shift register, the register storing digital comparator element And. N inputs of the analog multiplexer are the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels. The output of the analog multiplexer is connected to an analog-to-digital Converter. The first L inputs a key element connected L outputs of analog-to-digital Converter, where L is determined by the expression L= [1+log2D], where [.] denotes the integer part of the expression in parentheses, a D - dynamic range receiver, expressed in the times. L inputs of the shift register are connected to the outputs of the key element. L input d is the input node ranking. The first L inputs of a digital comparator connected to the outputs of the storage register and to the second L inputs connected to the outputs of the shift register. To the first input element And is connected to the output of the digital comparator and the second input is the second managing input node ranking. The output element And is connected to the second control input of the storage register and is the second control the output node ranking. To the first inputs of L elements OR connected to appropriate outputs of the shift register, the second inputs of these elements are connected in parallel and form a third control input node ranking. The outputs of the elements OR connected to the second L inputs a key element. P1 counting outputs of the counter are connected to respective control inputs of the analog multiplexer, where P1 is determined from the condition P1= [1+log2N] , where [.] denotes the integer part of the expression in parentheses. The output of the overflow of the counter is connected to the first control input of the key element and is the first to control the output node ranking. The control input of the counter and the second control input of the key element are connected in parallel and form a fourth control input node ranking.

The control unit contains the first choice of the element, the Converter code - pulse burst, the shift register decoder. M inputs of the first element and multiplexer are connected in parallel and are the corresponding M control inputs of the second group of control inputs of the block selecting optimal subchannels. The output of the first element OR connected to the first input element And. the Output element And is the first Manager of the access control node and also connected to the control input of the second counter. P outputs a second counter connected to respective control inputs of the multiplexer. The output of the multiplexer is connected to the first information input key of the element to the second information input of which is connected zero combination. To the first control input a key element connected to the output of the overflow of the second counter. The key element is connected to the second input of the second element OR the clock input of the first counter. The output of the second element OR is connected to a control input of the shift register to the R inputs of which are connected the outputs of the second counter. The p outputs of the shift register forming the first information output unit selecting the optimal subchannels and connected to the corresponding in the counter form a second control output of the control unit and connected to the second P inputs of the adder. The first R inputs of the adder connected combination of "NOT-M", and its outputs connected to respective inputs of the Converter code - pulse burst. The control input of the Converter code - pulse burst is connected in parallel with the control input of the first counter and is the second managing entrance control unit. The Converter output code - pulse burst at the same time connected to the first inputs of the second and third elements OR. The second input of the third element OR the third input of the second element OR connected in parallel and form a first control input of the control unit. The output of the third element OR connected to the counting input of the third counter, the output of which is connected to the second input element And to the second control input of a key element.

The node numbers of the optimal subchannels contains the Converter code - pulse burst, the first and second counters, the element OR the first and second storage registers, P1 adders modulo two, the shift register element AND-NOT M storage registers, the inverter. The input of the first counter is the first managing input node issuing non-optimal subchannels, and the output of the overflow is the first Manager vyhoda the s outputs of the first counter. The control input of the first register storage is the second Manager of the input node issuing non-optimal subchannels. To the counting input of the second counter connected to the output of the overflow of the first counter. The output of the overflow of the second counter is the fourth control the output node issuing non-optimal subchannels. To the control input of the Converter code-pulse burst connected to the output of the overflow of the second counter, and R its information inputs constitute the third control input of the node numbers of the optimal subchannels. The Converter output code - pulse burst is the third information output unit selecting the optimal subchannels. To the first input element OR connected to the Converter output code - pulse burst, and a second input connected to the output of the overflow of the first counter. To the P1 input of the shift register connected to the respective outputs of the first storage register and to the clock input connected to the output element OR. To the P1 input of the second storage register connected to the respective outputs of the first storage register and to the control input connected to the output of the overflow of the first counter. To the first inputs P1 adders modulo two connected sootvetstvuem item AND IS NOT connected to the outputs of the respective adders modulo two; and the output of this element is the third control the output of the block-grant non-optimal subchannels. To the inverter input connected to the output element AND IS NOT, and its output is the second control the output node issuing non-optimal subchannels. To P1 inputs M storage registers connected to the outputs of the shift register, and the control inputs of these registers are the control inputs of the number M of the control inputs of the node numbers of the optimal subchannels. The outputs of the M storage registers are control outputs block selection of the optimal subchannels.

This set of essential features of the claimed device allows to reduce the bandwidth by increasing the load of the selected frequency communication interference due to the quality control of information transfer and replacement frequency unsuitable subchannels for each of the M threads unlike the prototype, where he carried out the quality control and were replacing the transmission frequency of the multicast stream.

The proposed device has the following advantages: improved efficiency of use of the band f = 3040 kHz leads to a decrease in the flow of change operating frequencies in the frequency-adaptive radio, and Zamina the subchannel to replace it, corrected in the block detection and correction of errors due to the redundancy introduced in the group signal during transmission. This improves the timeliness and reliability of information transmission.

The claimed device is illustrated by drawings:

Fig. 1 is a General block diagram of the frequency-adaptive radio link;

Fig. 2 is a block diagram of the regeneration unit and Association information;

Fig. 3 is a structural block circuit diagram of the control computing device;

Fig. 4 is a structural block circuit diagram of the selection of the optimal subchannels;

Fig. 5 is a block diagram of the node ranking unit of choosing the optimal subchannels;

Fig. 6 is a block diagram of the node in the selection of non-optimal subchannels block selection of the optimal subchannels;

Fig. 7 is a structural diagram of a node control unit selecting the optimal subchannels;

Fig. 8 is a structural block circuit switching reference frequency.

Frequency-adaptive wireless link shown in Fig. 1, contains the radio 1 that contains the frequency Converter 1.1, the frequency synthesizer 1.2, radio 2, radiometric block 3, block select optimal subchannels 4, block coding teams 5, block demodulators 6, the switching unit reference frequency when the lock modulators 11, the regeneration unit and integrating information 12, the control unit computing device 13, the block decoding commands 14, block the formation of manipulation code 15. The signal output of the radio receiver 1 is connected to the input of the radiometric unit 3 and the signal input of the demodulator 6. N control output radiometric unit 3 connected to the corresponding N control inputs of the first group of control inputs of the block selecting optimal 4 subchannels. M information output unit demodulators connected to the corresponding M information input unit regeneration and consolidation of information 12. Control output block decoding commands 14 is connected to the second input of the transmitter 2. The first information output unit regeneration and consolidation of information 12 is the output of the frequency-adaptive radio link. The first information input processing unit handling code 15 is the input of frequency-adaptive radio, and his M information outputs connected to the corresponding M information input unit modulators 11. The first, second and third information output unit selecting the optimal subchannels 4 connected to the corresponding information input unit katironalee inputs of the switching unit reference frequency reception 7. N signal inputs of the switching unit reference frequency reception 7 connected to the respective N outputs of the block of the reference frequency reception 8. M signal outputs of the switching unit reference frequency reception 7 is connected with the corresponding M inputs of the unit demodulators 6. Information output block coding teams 5 is connected to the second information input processing unit handling code 15. The second information output unit regeneration and consolidation of information 12 is connected to the information input unit of decoding commands 14. M control output block decoding commands 14 connected to the corresponding M control inputs of the switching unit reference frequency transmission 10, N signal inputs of which are connected to the respective N signal outputs of the block of the reference frequency of the transmission 9. M signal outputs of the switching unit reference frequency transmission 10 is connected with the corresponding M signal inputs of the block of the modulator 11. M signal outputs of the regeneration unit and integrating information 12 is connected to the corresponding M inputs of the control unit computing device 13. M control output unit of the control computing device 13 connected to respective M inputs of the second group of governors who is offline to the input of the frequency synthesizer 1.2 radio 1 and the fourth input of the coding block of commands 5. The signal output of modulator 11 is connected to the input of the transmitter 2.

The regeneration unit and integrating information 12 is designed to combine the information transmitted on the subchannels, enhanced accuracy and can be constructed as shown in Fig. 2. The regeneration unit and integrating information 12 includes M integrators 12-1, analog multiplexer 12-2, 12-3 counter, M triggers 12-4, analog-to-digital Converter 12-5, the first storage register 12-6, the second register storing 12-7, element And 12-8, detector errors 12-9, digital comparator 12-10, decoder 12-11, K+1 adders modulo two 12-12, K+1, the buffer triggers 12-13, multiplexer 12-14. The inputs of M integrators 12-1 are information input unit regeneration and consolidation of information 12. To the inputs M triggers 12-4 are connected to the respective outputs of the integrators 12-1. To M inputs of the analog multiplexer 12-2 connected to the respective outputs of the integrators 12-1. To the input of the analog-to-digital Converter 12-5 connected to the output of the analog multiplexer 12-2. The p outputs of the counter 12-3 is connected to the control inputs of the analog multiplexer 12-2. The first group of information inputs of the digital comparator 12-10 connected to the outputs of the analog-to-digital what about the Converter 12-5, but to its control input connected to the output of digital comparator 12-10. The outputs of the first storage register 12-6 connected to the second group of information inputs of the digital comparator 12-10. To the R inputs of the second register storing 12-7 connected to corresponding outputs of the counter 12-3, and to a control input connected to the output of digital comparator 12-10. To the inputs of the decoder 12-11 connected to the outputs of the second storage register 12-7. To the inputs of detector errors 12-9 connected to the outputs of the respective triggers 12-4. To the first input element And 12-8 connected to the output of the counter overflow 12-3 to the second input connected to the output of detector errors 12-91. The output element And 12-8 connected to the control input of the decoder 12-11. To the first inputs of the K-1 adders modulo two 12-12 connected to the outputs of the respective triggers 12-4, and to the second inputs the respective outputs of the decoder 12-11. The inputs To+1 trigger 12-13 connected to the outputs of the respective adders modulo two 12-12, and to the control inputs connected in parallel to the output element And 12-8. To the inputs of the multiplexer 12 to 14 connected to the respective outputs To trigger 12-13, and its output is the first information output unit regeneration and consolidation of information 12. Access To the+1 trigger 12-13 AV are the signal outputs of the regeneration unit and integrating information 12.

The control unit computing device 13 is designed to monitor the suitability of subchannels for transmitting information, issue commands to their replacement or replacement of fixed frequency and can be constructed as shown in Fig. 3. The control unit computing device 13 includes M first digital Comparators 13-4, M of the first counter 13-2, the first 13-3 and second 13-8 sensors code threshold, the element OR 13-6, the second digital comparator 13-9, 13-7 second, third 13-1 and fourth 13-5 counters. Counting input M of the first counter 13-2 input unit of the control computing device 13. Q1 outputs of each of the M first counter 13-2 is connected to the first group of inputs of the respective first digital Comparators 13-4, where Q1 is determined by the expression Q1= [log2(VwithT1)], where T1the time interval of the analysis of the suitability of subchannels defined by the desired precision of the estimate of the probability of error. Q1 outputs of the first sensor code threshold 13-3 is connected to the second group of inputs of the respective first digital Comparators 13-4, the outputs of which are the first M outputs of the control unit computing device 13. The inputs of the element OR 13-6 connected to the respective outputs of the first digital comparator 13-4. The output of the second digital cuchini to the first group of inputs of the second digital comparator 13-9, where Q2 is determined by the expression Q2= [log2(RT2)l, where R is the maximum flux density shifts of frequency subchannels, T2the time interval of the analysis of the suitability of a fixed frequency determined desired communication reliability. The counting input of the second counter 13-7 connected to the output element OR 13-6. Q2 outputs of the second sensor code threshold 13-8 connected to the second group of inputs of the second digital comparator 13-9. The output of the third counter 13-1 is connected simultaneously to the control inputs of the respective M first counter 13-2 and the respective M first digital Comparators 13-4. The output of the fourth counter 13-5 connected simultaneously to the control inputs of the second counter 13-7 and second digital comparator 13-9.

The block selecting optimal subchannels 4 is intended for the analysis of subchannels and selecting subchannels with the lowest noise level and can be implemented as shown in Fig. 4. The block selecting optimal subchannels 4 includes site ranking 4-1, the control unit 4-2 and the node numbers of the optimal subchannels 4-3. N inputs of node ranking 4-1 are the corresponding N control inputs of the first group of control inputs of the block selecting optimal 4 subchannels. M input node primaline of subchannels 4, and the information output is the first information output unit selecting the optimal 4 subchannels. The first output node issuing non-optimal subchannels 4-3 is the third information output unit selecting the optimal subchannels 4 and also connected to the first control input of the control unit 4-2. The second output node issuing non-optimal subchannels 4-3 is the second information output unit selecting the optimal 4 subchannels. The remaining M outputs of the node numbers of the optimal subchannels 4-3 are control outputs block selection of the optimal 4 subchannels. The first and second control outputs of node ranking 4-1 is connected to the first and second control inputs of the node numbers of the optimal subchannels 4-3. First, second and third control outputs of the node numbers of the optimal subchannels 4-3 is connected to the first, second and third control inputs of the node ranking 4-1, and the fourth control output connected to the second control input of the control unit 4-2. The first control output of the control unit 4-2 is connected to the fourth control input node ranking 4-1, and the second control output connected to the third control input node numbers OPI rooms for optimal subchannels 4-3.

Site ranking 4-1 is designed to sort of subchannels according to the noise level and can be implemented as shown in Fig. 5. Site ranking 4-1 includes a counter 4-1-1, analog multiplexer 4-1-2, analog-to-digital Converter 4-1-3, L elements OR 4-1-4, a key element 4-1-5, the shift register 4-1-6, register storing 4-1-7, digital comparator 4-1-8, element And 4-1-9. N inputs of the analog multiplexer 4-1-2 are the corresponding N control inputs of the first group of control inputs of the block selecting optimal 4 subchannels. The output of the analog multiplexer 4-1-2 connected to the analog-to-digital Converter 4-1-3. The first L inputs a key element 4-1-5 connected L outputs of analog-to-digital Converter 4-1-3. L inputs of the shift register 4-1-6 connected to the outputs of the key elements 4-1-5. L inputs of register storage 4-1-7 connected to the outputs of the shift register 4-1-6, and the first control input is a first managing input node ranking 4-1. The first L inputs of the digital comparator 4-1-8 connected to the outputs of the storage register 4-1-7, and the second L inputs connected to the outputs of the shift register 4-1-6. To the first input element And 4-1-9 connected to the output of digital comparator 4-1-8, and the second entrance is the second managing input node of the RAS is rawsumer output node ranking 4-1. To the first inputs of L elements, OR 4-1-4 connected to respective outputs of the shift register 4-1-6, the second inputs of these elements are connected in parallel and form a third control input node ranking 4-1. The outputs of the elements OR connected to the second L inputs a key element 4-1-5. P1 the counting outputs of counter 4-1-1 connected to respective control inputs of the analog multiplexer 4-1-2. The output of the counter overflow 4-1-1 connected to the first control input a key element 4-1-5 and is the first to control the output node ranking 4-1. The control input of the counter 4-1-1 and the second control input is a key element 4-1-5 connected in parallel and form a fourth control input node ranking 4-1.

The control unit 4-2 is designed to synchronize the nodes of the block selecting optimal subchannels 4, interacts with blocks and can be implemented as shown in Fig. 6. The control unit 4-2 contains the first element OR 4-2-1, element And 4-2-2, the first counter 4-2-3, the second counter 4-2-4, the multiplexer 4-2-5, the adder 4-2-6, a key element 4-2-7, the transmitter code - pulse burst 4-2-8, the second element OR 4-2-9, the third element OR 4-2-10, the third counter 4-2-11, the shift register 4-2-12, the decoder 4-2-13. M inputs by pervade second group of control inputs of the block selecting optimal 4 subchannels. The output of the first element OR 4-2-1 connected to the first input element And 4-2-2. The output element And 4-2-2 is the first to control the output control unit 4-2 and also connected to the control input of the second counter 4-2-4. The p outputs of the second counter 4-2-4 connected to respective control inputs of the multiplexer 4-2-5. The output of multiplexer 4-2-5 connected to the first information input key element 4-2-7, to the second information input of which is connected zero combination. To the first control input a key element 4-2-7 connected to the output of the overflow of the second counter 4-2-4. The key element is connected to the second input of the second element OR 4-2-9 and the clock input of the first counter 4-2-3. The output of the second element OR 4-2-9 connected to the control input of the shift register 4-2-12, to the R inputs of which are connected the outputs of the second counter 4-2-4. The p outputs of the shift register 4-2-12 form a first information output unit selecting the optimal subchannels 4 and connected to the corresponding inputs of the decoder 4-2-13. M outputs of the decoder 4-2-13 are M control outputs of the control unit 4-2. The p outputs of the first counter 4-2-3 form a second control output of the control unit 4-2 and connected to Deut to the corresponding inputs of the Converter code-pulse burst 4-2-8. The control input of the Converter code - pulse burst 4-2-8 connected in parallel with the control input of the first counter 4-2-3 and is the second managing entrance control unit 4-2. The Converter output code - pulse burst 4-2-8 simultaneously connected to the first inputs of the second 4-2-9 and third 4-2-10 items OR. The second input of the third element OR 4-2-10 and the third input of the second element OR 4-2-9 connected in parallel and form a first control input of the control unit 4-2. The output of the third element OR 4-2-10 connected to the counting input of the third counter 4-2-11, the output of which is connected to the second input element And 4-2-2 and to the second control input a key element 4-2-7.

The node numbers of the optimal subchannels 4-3 is used for delivery of the coding block of commands 5 and switching unit reference frequency reception 7 numbers in the selected optimal subchannels and can be implemented as shown in Fig. 7. The node numbers of the optimal subchannels 4-3 contains the Converter code - pulse burst 4-3-1, the first counter 4-3-2, the second counter 4-3-3, element OR 4-3-4, the first register storing 4-3-5, the second register storing 4-3-6, P1 adders modulo two 4-3-7, the shift register 4-3-8, element AND-NOT 4-3-9, M registers hrimaly of subchannels 4-3, and the output of the overflow is first to control the output of the node numbers of the optimal subchannels 4-3. To the P1 input of the first register storing 4-3-5 connected to respective outputs of the first counter 4-3-2. The control input of the first register storing 4-3-5 is the second Manager of the input node issuing non-optimal subchannels 4-3. To the counting input of the second counter 4-3-3 connected to the output of the overflow of the first counter 4-3-2. The output of the overflow of the second counter 4-3-3 is the fourth control the output node issuing non-optimal subchannels 4-3. To the control input < Converter code - pulse burst 4-3-1 connected to the output of the overflow of the second counter 4-3-3, and R its information inputs constitute the third control input of the node numbers of the optimal subchannels 4-3. The Converter output code - pulse burst 4-3-1 is the third information output unit selecting the optimal 4 subchannels. To the first input element OR 4-3-4 connected to the Converter output code - pulse burst 4-3-1, and a second input connected to the output of the overflow of the first counter 4-3-2. To the P1 input of the shift register 4-3-8 connected to respective outputs of the first register storing 4-3-5, and to a clock input connected to output the RA storage 4-3-5, and to a control input connected to the output of the overflow of the first counter 4-3-2. To the first inputs P1 adders modulo two 4-3-7 connected to corresponding outputs of the second register storing 4-3-6, and the second connected to the respective outputs of the first counter 4-3-2. To the P1 input element AND-NOT 4-3-9 connected to the outputs of the respective adders modulo two 4-3-7, and the output of this element is the third control the output of the block-grant non-optimal subchannels 4-3. To the input of the inverter 4-3-11 connected to the output element AND IS NOT 4-3-9, and its output is the second control the output node issuing non-optimal subchannels 4-3. To P1 inputs M storage registers 4-3-10 connected to the outputs of the shift register 4-3-8, and the control inputs of these registers are the control inputs of the number M of the control inputs of the node numbers of the optimal subchannels 4-3. The outputs of the M storage registers 4-3-10 are control outputs block selection of the optimal subchannels 4.

Switching units of the reference frequency transmission and reception are identical, are designed for switching the inputs of the block modulators (block demodulator) reference frequency subchannels of the reception(transmission) and can be implemented as shown in Fig. 8. They contain M analog mulama (transfer), signal inputs are connected in parallel and are the signal inputs of the switching unit reference frequency reception (transmission), and the outputs are the signal outputs of the switching unit reference frequency reception (transmission).

The feasibility of the proposed adaptive radio link due to the fact that most of the devices and nodes that are included in its composition, are similar to the corresponding devices and prototype units, and newly introduced devices or nodes or issued by the industry in the form of finished products or their construction is described in the technical literature.

So, included in the regeneration unit and integrating information 12 integrators and detector errors are widely known. Integrators can be implemented on the basis of the operational amplifier, as shown, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals. -M.: Radio and communication, 1983, page 193, Fig.7.10, and the error detector to the number of inputs, performs the function of parity, can be implemented by cascading the required number of chips that perform the function of the comparison circuit (for example, SA).

Used in the regeneration unit and objecttypecode with the number of inputs, equal to M or N, are known and can be constructed as shown, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pages 202-203, Fig. 7.13.

Used in the regeneration unit and integrating information 12, the control unit computing device 13, the sites ranking 4-1, 4-2 control, issuance of non-optimal subchannels 4-3 counters are known and can be constructed as indicated, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 125-131.

Used in the regeneration unit and integrating the information 12 and the sites ranking 4-1, 4-2 control, issuance of non-optimal subchannels 4-3 storage registers and shift registers can be implemented as specified, for example, in the book. Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 121-125.

Used in the above blocks and nodes triggers are known and can be implemented as shown, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M: Radio which I 4-2 decoders are known and can be implemented as specified, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 109-110.

Used in the regeneration unit and integrating the information 12 and node ranking 4-1 analog-to-digital converters are known and can be constructed as indicated, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 205-210.

Used in the regeneration unit and integrating information 12, the control unit computing device 13 and node ranking 4-1 digital Comparators are known and can be constructed as indicated, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 108-109.

Used in the regeneration unit and integrating the information 12 and the node numbers of the optimal subchannels adders modulo two well-known and can be constructed as indicated, for example, in the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M. : Radio and communication, 1983, pp. 107-108.

Used in the regeneration unit and United the book Sigarev A. A., Lebedev O. N. Microelectronic device design and processing of complex signals.-M.: Radio and communication, 1983, pp. 111-114.

Used in the control unit 4-2 adder are known and can be implemented as shown, for example, in the book fundamentals of pulse and digital techniques. Under the General Ed. by A. M. Sidorova.- SUVIUS, 1995, pp. 134-139.

Used in control units 4-2 and issuance of non-optimal subchannels 4-3 converters "code - pulse burst are known and can be implemented as, for example, as outlined in the generator sequence of n pulses in the book of P. Horovitz, Hilo U. Art circuitry.-M.: Mir, 1984, pages 584-586.

Key elements used in the sites ranking 4-1 and 4-2 control can be implemented by paralleling the inputs of the control circuits that perform the function selector/multiplexer 2x1, the desired number of which is determined by the width of the switched tires.

The proposed frequency-adaptive wireless link operates in the following manner. When entering a communication radio 1 and radio 2 are configured respectively on software frequency transmission and reception, selected in the radio link. As a result, the second intermediate frequency, representing information about the levels of interference in the band F. Radiometric unit 3 conducts the measurement of the levels of interference in the frequency bands f (size f is determined by the accepted method of separation of the multicast stream from the terminal equipment To the sub flows and accordingly the speed of modulation for each subchannel, which depends on the spectral width of the signal in one subchannel). The measured interference levels with N (the number of bands f within the band F) outputs radiometric unit 3 is coming to corresponding inputs of a block of choosing the optimal subchannels 4 for analysis. The block selecting optimal subchannels 4 selects M optimal level of interference of subchannels and transmit information about their numbers in the switching unit reference frequency receiving 7, for a switching frequency of the racks in the unit demodulators 6, as well as in the coding block commands 5 for error-correcting coding and transmission correspondent for installation of the respective carrier frequencies of subchannels on his block commutation reference frequency transmission. At the same time, the reporter also produces similar actions and transmits the information about the numbers of the selected subchannels, which is made by radio 1, is processed in the receiving path and who carries out the decoding of the received information and correction of errors. With its M outputs the optimal number of subchannels arrive at the switching unit reference frequency transmission 10 for installation of the carrier frequencies of the subchannels, the optimal receiver's correspondent. After selecting and setting the optimal frequency subchannels on the receivers and transmitters correspondents in the frequency-adaptive radio link begins the process of sharing digital information from the terminal equipment, and in the process of exchange radiometric unit 3 continues the analysis of the levels of interference in the frequency band f intermediate frequency radio 1 for the purpose of preparing data for a selection of new subchannels with increasing relative errors in any working subchannels. Transmission of discrete information with velocity Vandbps output terminal equipment to the input of the shaping unit handling code 15, which is the input of frequency-adaptive radio link, where is the temporary separation of a single thread on the sub and the formation of parallel sub-workflows with low speeds, providing reliable reception in channels with intersymbol interference. Simultaneously forming unit handling code 15 is the formation of additional threads, one to whom the transfer of redundant information to improve the reliability of reception. The number of additional threads for error detection is determined by the number of detected and corrected errors. For example, to detect one error is enough to use the code (K+1, K, 2) additions to parity. At the same time to convey information about the addition to the parity will be only one additional thread. If you want to provide more high-correcting ability, all the sub-threads are divided into groups equal in number to the number of corrected errors, and for each group generates additional information flow control parity. Each substream is relative encoding data to form a signal with a single (double) relative phase modulation. Formed in this way M flows from the outputs of the shaping unit handling code 15 is received on the first group of M input unit modulators 11, where a single (double) relative phase modulation of the carrier frequencies of the optimal subchannels, which are sent to a second group of M inputs of this block with the respective outputs of the switching unit reference frequency transmission 10.

Thus formed group signal with the output receiving device 1 in the frequency band F is supplied to the first input of the demodulators 6, where the separation of the group signal channel components with subsequent demodulation of subcarriers at frequencies fi, i = 1 - M received at the respective inputs to M outputs of the switching unit reference frequency reception 7. With M outputs of the unit demodulators 6 discretized in time, but continuous amplitude signals concurrent threads arrive at the M inputs of the regeneration unit and integrating information 12, the error detection is carried out by "hard" decoding the received code in the error detector (for example, by checking a received combination even parity), and correction of detected errors is carried out according to the method of Wagner. After error correction is joined To the sub-workflows into a single digital stream from the first output unit regeneration and consolidation of information 12, which is the output of the frequency-adaptive radio link, enters the recipient's information. Simultaneously with the second output of this block the flow of official information is passed to the block decoding commands 14 and flow marks on detected errors in each of the M subchannels with the corresponding outputs are received at the control unit computing device 13, which obesiy. Data reception is carried out up until chastoty errors less valid. As soon as the threshold of permissible number of errors in any of the subchannels is exceeded, signals the decline in the quality of the subchannel with the outputs of the control unit computing device 13 corresponding to the non-faulty subchannels, proceed to the appropriate inputs of the block selecting optimal subchannels 4, which selects the required number of subchannels with a minimum level of interference. Signals support, non faulty subchannels and the number of the selected frequencies for the respective subchannels respectively with first, second and third outputs block selection of the optimal 4 subchannels are received at the inputs of block coding teams 5, where they are redundant coding to protect against errors in transmission through a channel with interference, and go to the second input of the processing unit handling code 15 for transmission to the correspondent, where it is the change in frequency of information transmission in the respective subchannels. In addition, outputs block selection of the optimal 4 subchannels corresponding to non-defective subchannels, to the inputs of the switching unit reference frequency reception 7 is transmitted rooms the donkey changing frequencies faulty subchannels process of information exchange, it continues further. In this case, transmission of information under intact subchannels does not stop, and errors resulting from the reduction in communication quality due to interference and in the process of replacing the faulty subchannels, are corrected in the regeneration unit and integrating information 12. Moreover, the number of simultaneously corrected errors and, accordingly, the maximum number of replaceable (without interrupting communication) of the subchannels will be determined by the selected encoding method.

If the decision to reduce the reliability of reception of the information in the subchannel takes correspondent, the change of frequency subchannels for the reverse transmission direction is from his hand. When this command on non-defective subchannels and the number of new frequency data subchannels transmitted by the correspondent from the second output unit regeneration and consolidation of information 12 is fed to the input of block decoding commands 14, which produces the correction of detected errors in the received command, and then the number of new frequency subchannels are received at the respective inputs of the switching unit reference frequency transmission 10 to replace the faulty frequency subchannels. Changing the carrier frequency of the subchannel is made without stopping the transmission of information.

their device makes a decision about the absence in the band F tract intermediate frequency receiver channels with a bandwidth f, suitable for conducting communication, and develops a team of replacing the operating frequency of the frequency-adaptive radio link in this new direction, and after it shifts the transition to the exchange of information from the beginning.

The regeneration unit and integrating information 12 operates in the following

. The output signal of the unit demodulators 6 in analog form are received at the inputs of the respective integrators 12-1 where they are averaged over the duration of the clock interval. From the outputs of the integrators 12-1 averaged signals arrive at the inputs of the respective triggers 12-4, which convert these signals into digital form. In addition, the averaged signals from the outputs of all of the integrators 12-1 receives the inputs of the analog multiplexer 12-2, which control signals from the counter 12-3 connect them to the analog-to-digital Converter 12-5, and a survey of all integrators occurs at the end of the clock interval. Analog-to-digital Converter 12-5 converts the signal level in the digital code combination. These code combinations in parallel form are placed on the first group of information inputs of the digital comparator 12-10 and the inputs of the first storage register 12-6. Digital is gistr storage 12-6, moreover, when comparing the first combination in the first storage register 12-6 written code combination corresponding to the maximum signal level. If the current code combination is less than the combination recorded in the first storage register 12-6, the output signal of the digital comparator 12-10 she will be written into the first storage register 12-6, and the second register storing 12-7 will be written to the channel number, signal to which it corresponds. Otherwise, the state changes of the first and second storage registers is not possible. At the end of the polling cycle of all channels and comparing the signals in the second storage register 12-7 to store the channel number with the lowest signal level. Simultaneously with the survey channels of digital signals from the outputs of the triggers 12-4 arrive at the inputs of detector errors 12-9 and to first inputs of corresponding adders modulo two 12-12. If the error detector establishes the existence of errors, then its output to the second input element And 12-8 signal its presence. In addition, at the end of the polling cycle of all channels from the output of counter overflow 12-3 at the first input element And 12-8 receives the signal indicating the end of the polling cycle of the subchannels. When the first and second Element a signal, which allows the decoder 12-11 to give the signal, allowing to correct the error in the channel with the lowest signal level. This signal from one of the outputs of the decoder 12-11 supplied to the second input of the corresponding adder modulo two 12-12, which corrects the error in this channel, and the corresponding input of the control computing device 13. Fix errors in the control channel errors (for example, in the channel parity). Simultaneously with the correction signal from the output element And 12-8 supplied to control inputs of the triggers 12-13 and logs them in fixed combination with the outputs of the respective adders modulo two 12-12. From outputs of the first To trigger 12-13 signals in the multiplexer 12 to 14, which converts them into serial form, and with its release they enter the recipient information. Output (K+1)-th flip-flop 12-13 signals sprinkled on the input unit of decoding commands 14.

The control unit computing device 13 operates as follows. Signals an error in the subchannels from the regeneration unit and integrating information 12 received at the counting inputs of the respective first counter. On the control signal from the third counter 13-1 first counters the code combination, corresponding to the number of errors in the subchannels, come from the outputs of the first counter 13-2 in the first inputs of the respective first digital Comparators 13-4. In the first digital Comparators 13-4 compares these code combinations with a combination of arriving at the second input from the first sensor code threshold 13-3. If the comparison result shows that the code combination received from the corresponding first counter 13-2, greater than or equal to the code combination from the first sensor code threshold 13-3, the output of the corresponding first digital comparator 13-4, a signal will appear on the replacement of faulty subchannel. This signal is applied to the block selection of the optimal subchannel 4 and the corresponding input element OR 13-6. The signals output element OR 13-6 arrive at the counting input of the second counter 13-7. The second counter is 13-7 on the control signals from the fourth counter 13-5 counts the number of teams for the replacement of subchannels for the time interval T2. At the end of the interval account code combination corresponding to the number of teams replace subchannel, is fed to the first inputs of the second digital comparator 13-9. A second digital comparator 13-9 compares the code combination received about is avania shows the combination received from the second counter 13-7, greater than or equal to the code combination received from the second sensor code threshold 13-8, at the output of the second digital comparator 13-9 a signal to replace the operating frequency, which is supplied to the frequency synthesizer 1.2 and block coding teams 5 for transmission to the correspondent.

The block selecting optimal subchannels 4 operates as follows. When deciding about the unsuitability for information transfer any of the M subchannels from the block control computing device 13 to the corresponding inputs of the control unit 4-2 receives the query command to replace the corresponding subcastes. These commands control unit 4-2 is determined by the number and the number of subchannels, requiring replacement. In the control unit 4-2, a signal is generated that allows work site ranking 4-1 and node numbers of the optimal subchannels 4-3. Measured in radiometric block 3 levels of interference with its N outputs go to corresponding inputs of a node ranking 4-1 where you can search for a desired number of frequency subchannels with the lowest levels of interference. Non optimal subcastes are defined in the node issuing non-optimal subchannels 4-3, which control sootvetstvuyushie outputs switching unit reference frequency reception 7 and block coding teams 5. Simultaneously with the corresponding outputs of the control units 4-2 and issuance of non-optimal subchannels 4-3 in the first and second inputs of the coding block of the 5 teams receive respectively the signals of support and non faulty subchannels for which the selected new frequencies.

In the process of choosing the optimal subchannels site ranking 4-1 operates in two stages.

The first step is to record levels of interference. When measured in radiometric block 3 levels of interference received at the respective inputs of the analog multiplexer 4-1-2, which in turn interrogates them and connects to the analog-to-digital Converter 4-1-3. The analog multiplexer 4-1-2 in the survey of the levels of interference manages the counter 4-1-1, which begins its work on the control signal from the control unit 4-2. By the same signal is produced by the connection of the outputs of analog-to-digital Converter 4-1-3 through the first group of information inputs a key element 4-1-5 to the inputs of the shift register 4-1-6. Analog-to-digital Converter 4-1-3 converts the interference levels on each subcaste in the corresponding L-bit code combinations that are recorded in the shift register 4-1-6.

The signals of the ditch optimal subchannels 4-3, the phase comparison of the levels of interference and to seek the best subcastes. At this stage the nodes ranking 4-1 and issuance of non-optimal subchannels 4-3 are agreed by performing M cycles N comparisons in each. Thus the outputs of the shift register 4-1-6 through the elements OR 4-1-4 and a second group of inputs a key element 4-1-5 are connected to the inputs of register 4-1-6, forming a ring case. The speed of the elements involved in the ring rankings, and the site features the issuance of non-optimal subchannels 4-3 increases. Code combination from the output of the shift register 4-1-6 arrive simultaneously at the inputs of register storage 4-1-7 and the second group of information inputs of the digital comparator 4-1-8, which compares the current code combination with the combination stored in the storage register 4-1-7, and at the beginning of each of the M cycles of the comparison register storing 4-1-7, by the signal from the node issuing non-optimal subchannels 4-3, written combination, corresponding to the maximum interference level. If the current combination is less than the combinations stored in the storage register 4-1-7, the output of digital comparator 4-1-8 a signal, which is supplied to the first input element And 4-1-9. The output of this element is 3, a signal permitting the entry in the register storage 4-1-7 value current code combination. In addition, this signal is applied to the node issuing non-optimal subchannels 4-3, where is stored the number corresponding to the given code combination. In the absence of the second input element And 4-1-9 enabling signal, if in the previous cycle compare this code combination was determined as a minimum, record the current value in the register storage 4-1-7 not performed and compares the next code combination. The record does not occur in the case when the current combination is greater than or equal to the combination stored in the storage register 4-1-7. In addition, after each comparison is performed to regenerate the information about the levels of the signals in the shift register 4-1-6. Code combination from the output of this register are received at second input elements OR 4-1-4. If the current code combination has not been defined in the previous cycle as a minimum, the outputs of the elements OR appear the signals received at their second inputs. Otherwise, the first inputs of these elements from the node issuing non-optimal subchannels signal "1" and the outputs of the elements OR 4-1-4 appears the combination, with the 1-6. Thus, at the end of each cycle comparison revealed a code combination corresponding to the lowest level of interference from the N measured, and the node numbers of the optimal subchannels 4-3 to store the number of frequency subchannels to which it corresponds. As a result of executing M cycles comparison revealed M code combinations with the lowest values of the measured interference levels, and the node numbers of the optimal subchannels will be remembered numbers corresponding frequency subchannels, and they are going to be in the order of increasing levels of interference.

The node numbers of the optimal subchannels 4-3 works in two steps.

At the first stage in the interaction with host ranking is 4-1 M cycles N comparisons of levels of interference. In each cycle according to the results of the comparison of the levels of interference are memorizing numbers frequency subchannels corresponding to the subchannels with the lowest levels of interference. The first counter 4-3-2 starts on a signal from the node ranking 4-1, arriving at its control input. Combination bit P1 with its countable outputs received information to the inputs of the first register storing 4-3-5. When receiving from the host Kombinacija the current state of the first counter 4-3-2. In the absence of such a signal from the node ranking 4-1 this combination is ignored. At the end of one cycle of the first counter 4-3-2 in the first register storage 4-3-5 to store the number of frequency subchannels with the lowest interference level, and the output of the overflow of the first counter 4-3-2, a signal will appear, which will arrive simultaneously at the counting input of the second counter 4-3-3, the control input of the second register storing 4-3-6 and second input element OR 4-3-4. This signal code combination from the output of the first register storing 4-3-5 will be recorded in the second register storing 4-3-6, where it is stored until the next cycle comparison. In addition, this combination will arrive at the input of the shift register 4-3-8, entry to which is the output element OR 4-3-4. The signals P1 outputs of the second register storing received at the first inputs of the respective adders modulo two 4-3-7, to the second inputs of which are connected P1 outputs of the first counter. The signals from the adders modulo two 4-3-7 received the item, AND IS NOT, the output of which in the case of bitwise matches the code combination stored in the second storage register 4-3-6, and code combination at the output of the first counter 4-3-2, a signal will appear, which means that danina inverter input 4-3-11 and the third control input node ranking 4-1 to replace the code level to maximum. The output signal from the inverter 4-3-11 is supplied to the second control input node ranking 4-1 to deny remembering this level. The above cycle will be repeated until the overflow of the second counter 4-3-3.

In the second stage, in cooperation with the control unit 4-2, is the issue of non-optimal frequency of subchannels for the replacement frequency of the defective subchannels in the unit demodulators 6. It begins with the appearance at the output of the overflow of the second counter 4-3-3 signal, which is supplied simultaneously to the second control input of the control unit 4-2 and the control input of the Converter code - pulse burst 4-3-1. P information inputs of the Converter 4-3-1 received code combination from the second control output of the control unit 4-2 corresponding to the number of faulty subchannels. When it arrives at the control input of the Converter 4-3-1 enabling signal at its output appears packet of pulses equal to the number of faulty channels, which is supplied simultaneously to the first input element OR 4-3-4, at the first control input of the control unit 4-2 and on the third information input unit coding teams 5 to support the replacement frequency of the defective subchannels new. Output ELEH the population 4-2 signals, allow replacement frequency on the control inputs of the respective output registers store 4-3-10 they will be replaced with numbers frequencies faulty subchannels on the number of frequencies selected optimal subchannels. When this code combination with the outputs of the shift register 4-3-8 arrive simultaneously on informational inputs of the output registers store 4-3-10 and, for transmission to the correspondent, the second information input by the width P1 of block coding teams 5. Their delivery is accompanied by signals from the control unit 4-2. With P1 outputs the respective output registers store 4-3-10 non optimal frequency of subchannels arrive at the corresponding inputs of the switching unit reference frequency receiving 7, where it is replaced frequency stands for the unit demodulators 6.

In the process of selecting the optimal frequency of subchannels and replace defective control unit 4-2 works as follows. Failure alarms of subchannels from the corresponding block of the control computing device 13 arrive simultaneously at the inputs of the first element OR 4-2-1 and information inputs of the multiplexer 4-2-5. At the output of the first element OR 4-2-1, a signal is generated which is fed to the first input t of faulty subchannels, coming from the output of the overflow of the third counter 4-2-11, at its output a signal, which simultaneously comes to the control input of the second counter 4-2-4, allowing him prepare for the replacement of non-defective subchannels on the healthy, and the fourth control input node ranking 4-1, starting the process of choosing the optimal subcastes. The output signal of the second counter 4-2-4 arrive simultaneously on the control inputs of multiplexer 4-2-5 and information inputs of the shift register 4-2-12. Under the influence of the data signals in the multiplexer 4-2-5 is a survey of the outputs of the control unit computing device 13 and the signal integration of them into a single stream, which is output from the multiplexer 4-2-5 is supplied to the first information input key element 4-2-7. Output key element 4-2-7 pack of pulses equal to the number of faulty subchannels, arrives simultaneously at the counting input of the first counter 4-2-3 and to the second input of the second element OR 4-2-9. Under the influence of these signals in the first counter is counting the number of defective subchannels and simultaneously record their numbers in the shift register 4-2-12. After the end of the polling cycle of the output unit of the control computing device 13 on the full output will disconnect it from the multiplexer 4-2-5, by switching its output to the second information input, thereby locking the control node from exposure to signals from the control unit computing devices. When ready site grant non-optimal subchannels 4-3 to the changing rooms frequencies faulty subchannels on his fourth control output, a signal will appear, which will be transferred to the control inputs of the first counter 4-2-3 and Converter code - pulse burst 4-2-8. Under the influence of this signal is a binary code combination corresponding to the number of faulty subchannels, with the output of the first counter 4-2-3 will go to the third control input of the node numbers of the optimal subchannels 4-3 and the second group of information inputs of the adder 4-2-6, which outputs the result of addition of the code combination received from the first counter 4-2-3, and a combination of "NOT-M" will appear in the code combination corresponding to the number of serviceable subchannels. This code combination is supplied to the information input of the Converter code - pulse burst 4-2-8, the output of which appears a bundle of impulses, corresponding to a code combination. Tutu pulses from the Converter output code - pulse burst 4-2-8 is supplied to the first inputs of the second and third seaspray of subchannels to its output and the count in the third counter 4-1-11 number of serviceable subchannels. Under the influence of the pulse packet received from the first data output node issuing non-optimal subchannels 4-3 on the second inputs of the second and third elements OR 4-2-9 and 4-2-10, is the grant of a non-defective subchannels from the shift register 4-2-12 to corresponding inputs of a decoder 4-2-13 and the first input of the block coding teams 5 and counting their number in the third counter 4-2-11. In the moments of arrival of each pulse packs in the state changes of the third counter 4-2-11 on the respective outputs of the decoder 4-2-13 will be generated signals permit the replacement frequency of the defective subchannels that will be delivered to the control inputs of the respective storage registers 4-3-10 node numbers of the optimal subchannels 4-3. At the time of the passing of the last pulse of the stack would overflow the third counter 4-2-11, resulting at the output overflow signal appears about the end of the cycle. This signal is sent to the second input of the key element 4-2-7 and translate it into the ready state to transfer information from multiplexer 4-2-5 to the first counter 4-1-3, and also to the second input element And 4-2-2, allowing you to start when you want the next cycle of operation.

Westwoodi numbers of frequencies selected optimal subchannels, with outputs block selection of the optimal subchannels 4 (block decoding commands 14) are fed to the control inputs of the respective analog multiplexers, which designerour them and connect the appropriate outputs of the block of the reference frequency reception 8 (9) to the inputs of the unit demodulators 6 (modulators 11).

1. Frequency-adaptive wireless link that contains a radio transmitter, a radio receiver, containing the frequency synthesizer and the frequency Converter, the signal output of the radio connected to the signal input unit demodulators radiometric block N control output which is connected to the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels, the regeneration unit and integrating information M information input of which is connected to the corresponding M data outputs of the unit demodulators, the first information output unit regeneration and unification is the output of the frequency-adaptive radio link, the control unit computing device, the blocks of the reference frequency transmission and reception, the block coding teams, the block decoding teams, managing the output of which is connected to the second input of the transmitter, the block forming manip M information outputs connected to the corresponding M information input unit modulators, characterized in that it additionally introduced switching units reference frequency transmission and reception, the signal output of the radio is additionally connected to the input of radiometric block, the first, second and third information output unit selecting the optimal subchannels connected to the corresponding information unit coding teams, and M control output unit selecting the optimal subchannels connected to the corresponding M control inputs of the switching unit reference frequency reception, the N signal inputs of which are connected to the respective N outputs of the block of the reference frequency reception, M signal outputs of the switching unit reference frequency reception connected to respective M inputs of the unit demodulators the information output of the coding block of commands is connected to the second information input processing unit handling code, the second information output unit regeneration and consolidation of information connected to the information input unit of decoding commands M control output which is connected to the corresponding M control inputs of the switching unit reference frequency transmission, N signal inputs of which are connected to the respective N signal output corresponding M signal inputs of the modulator block, M signal outputs of the regeneration unit and integrating the information connected to the corresponding M inputs of the control unit-solvers, M control output which is connected to the corresponding M inputs of the second group of control inputs of the block selecting optimal subchannels, M + 1 output unit of the control computing device connected to the input of the frequency synthesizer radio receiver and a fourth input of the coding block of commands, the signal output unit modulators connected to the first input of the transmitter.

2. Frequency-adaptive wireless link under item 1, characterized in that the number of inputs/outputs, where N is the number of inputs/outputs M is determined from the condition M = K + S + C, where f is the bandwidth of the subchannel, F - bandwidth broadband channel receiver, function integer nearest to the value in brackets, S = 1, 2, 3, ... is the number of test subchannels determined necessary correcting ability of the code, C = 1, 2, 3, ... is the number of command of subchannels, define the needed bandwidth command channel, Vand- the speed of receiving information from the source, Vcallowable transmission rate information in the subchannel, the function of a larger whole, the nearest in the tion and Association information contains M integrators, the inputs of which are information input unit regeneration and consolidation of information, M triggers, inputs of which are connected to the respective outputs of the integrators, the switch signals to the M inputs of which are connected the outputs of the respective integrators, analog-to-digital Converter to the input of which is connected to the output of the switch signal, the counter P outputs of which are connected to the control inputs of switch signals, where the number of outputs of the counter P is determined from the condition P = [1 + log2(M)], where [.] denote the integer part of the number, a digital comparator, the first group of information inputs of which are connected the outputs of the analog-to-digital Converter, the first buffer register parallel write and read, to the information input of which is connected to the outputs of the analog-to-digital Converter and its control input connected to the output of the digital comparator and the outputs of the first buffer register parallel write and read are connected to the second group of information inputs of the digital comparator, the second buffer register parallel write and read, to the P inputs of which are connected to corresponding outputs of the counter, and to a control input connected to the output of register parallel write and read, the error detector, the input of which is connected to the respective outputs of the trigger element And to the first input of which is connected the output of the counter overflow to the second input connected to the output of the error detector, and the output element And is connected to the control input of the Converter code is position", K + 1 adders modulo two to the first inputs of which are connected the outputs of the respective triggers, and to the second inputs corresponding to the outputs of Converter "code position", K + 1, the buffer triggers, inputs of which are connected the outputs of the respective adders modulo two, and to the control inputs connected in parallel to the output element And, installation of temporary associations, to the inputs of which are connected the outputs of the respective K buffer triggers, and its output is the first information output unit regeneration and consolidation of information, the release of K + 1 buffer trigger is the second information output unit regeneration and consolidation of information, M outputs of Converter "code position" are the signal outputs of the regeneration unit and integrating the information.

4. Frequency-adaptive wireless link under item 1 or 2, to 3, characterized in that the control computing device includes M first the devices, and Q1 outputs connected to the first group of inputs of the respective first digital Comparators, where Q1 is determined by the expression Q1 = [log2(Vc- T1)], where T1the time interval of the analysis of the suitability of subchannels defined by the desired precision of the estimate of the probability of error, and [.] denotes the integer part of value in parentheses, the first sensor code threshold, Q1 outputs of which are connected to the second group of inputs of the first digital Comparators, the outputs of which are the first M outputs of the control unit computing device, element OR, the inputs of which are connected to the respective outputs of the first digital comparator, a second digital comparator, the output of the second digital comparator is M + 1 output unit of the control computing device, a second counter, Q2 outputs of which are connected to the first group of inputs of the second digital comparator, and a counting input connected to the output element OR, where Q2 is determined by the expression Q2 = [log2(RT2)], where R is the maximum flux density shifts of frequency subchannels, T2the time interval of the analysis of the suitability of a fixed frequency determined desired communication reliability, and [.] denotes the integer part of the expression in parentheses, vtoro the events counter, the output of which is connected simultaneously to the control inputs of the respective M first counter and the corresponding first digital comparator, a fourth counter, the output of which is connected simultaneously to the control inputs of the second counter and the second digital comparator.

5. Frequency-adaptive wireless link under item 1 or 2, 3, 4, characterized in that the power of choosing the optimal subchannels includes site ranking, N inputs which are the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels, site management, M inputs which are relevant M control inputs of the second group of control inputs of the block selecting optimal subchannels, and the information output is the first information output unit selecting the optimal subchannels, the node numbers of the optimal subchannels, the first output of which is the third information output unit selecting the optimal subchannels and simultaneously connected to the first control input of the control node, the second output is a second information output unit selecting the optimal subchannels, and the remaining M outputs are the control outputs block selection Optim who provide the inputs of the node numbers of the optimal subchannels, first, second and third control outputs of which are connected to first, second, and third control inputs of the node ranking, and the fourth control output connected to the second control input of the control node, the first control output of the control unit is connected to a fourth control input node ranking, and the second control output connected to the third control input of the node numbers of the optimal subchannels, the remaining M control output control unit connected to the M inputs of the node numbers of the optimal subchannels.

6. The device under item 5, characterized in that the node ranking includes an analog multiplexer, the N inputs of which are the corresponding N control inputs of the first group of control inputs of the block selecting optimal subchannels, and the output is connected to an L-bit analog-to-digital Converter, where L is determined by the expression L = [1 + log2D], where [.] denotes the integer part of the expression in parentheses, and D is the dynamic range of radio slots, a key element to the first L to the input of which is connected to the L outputs of analog-to-digital Converter, the shift register L inputs of which are connected to the outputs of the key element, the register grassim entrance site ranking, a digital comparator to the first L inputs of which are connected the outputs of the storage register and to the second L inputs connected to the outputs of the shift register element And to the first input of which is connected to the output of the digital comparator. and the second entrance is the second managing input node ranking, the output element And is connected to the second control input of the storage register and is the second control the output node ranking, L elements "OR", to the first inputs of which are connected to respective outputs of the shift register, a second input connected in parallel and form a third control input node ranking, and the outputs of these elements is connected to the second L inputs a key element, counter, counting P1 outputs of which are connected to respective control inputs of the analog multiplexer, where the number of the counting outputs P1 is determined from the condition P1 = [1 + log2N], where [. ] denotes the integer part of the expression in parentheses, the output of the overflow of the counter is connected to the first control input of the key element and is the first to control the output node ranking, and the control input and the second control input of the key element are connected in parallel and form a fourth control input node ranking.

8. The device according to PP.5 or 6, 7, characterized in that the node numbers of the optimal subchannels contains the first counter, the input of which is the first managing input node issuing non-optimal subchannels, and the output of the overflow is first to control the output of the node numbers of the optimal subchannels, the first storage register to the P1 input of which is connected to the corresponding outputs of the first counter, and its control input is the second managing input node numbers Opti is the overflow is the fourth control the output node issuing non-optimal subchannels, the Converter code-pulse burst, to the control input of which is connected the output of the overflow of the second counter, and P information inputs constitute the third control input of the node numbers of the optimal subchannels, and the output is the third information output unit selecting the optimal subchannels, the element OR to the first input of which is connected to the Converter output code-pulse burst, and a second input connected to the output of the overflow of the first counter, shift register, to the P1 input of which is connected to the corresponding outputs of the first storage register and to the clock input connected to the output element OR, a second storage register to the P1 input of which is connected to the corresponding outputs of the first storage register and to the control input connected to the output of the overflow of the first counter, P1 adders modulo two to the first inputs of which are connected to corresponding outputs of the second storage register, and the second connected to the respective outputs of the first counter element "AND NOT" to the P1 input of which is connected to the outputs of the respective adders modulo two, and the output of this element is the third control the output of the block-grant non-optimal subchannels, the inverter to the input of kotaroh of subchannels, M storage registers, P1 inputs are connected to outputs of the shift register and the control inputs are the control inputs, the number M of the control inputs of the node numbers of the optimal subchannels, the outputs of these registers store are control outputs block selection of the optimal subchannels.

 

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1 cl, 3 dwg

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