SU809594A1 - Device for monitoring communication channel state - Google Patents

Description

(54) DEVICE OF CONTROL OF CONDITION OF COMMUNICATION CHANNEL

The invention relates to radio engineering and can be used to control communication channels with variable parameters.

A device for monitoring the state of the communication channel contains two chains, each of which consists of a serially connected multiplier, integrator, signal conditioner, element I and counter, the integrator outputs of each chain are connected to the first and second inputs of the reference element, the second signalformer output the first chain is connected to another input of the element AND the second chain, the second output of the signal generator of the second chain is connected to another input of the element AND the first chain, the outputs of the counters of the first and second the second chains are connected to one and other inputs of the comparison element, the output of which through the integrator is connected to the combined other inputs of the two chain conditioners, the outputs of the elements AND of each chain are connected respectively to the first ji second inputs of the OR element, the output of which is connected through the shift register to the first trigger input and through serially connected the first prohibition element and the counter to the second input of the trigger, the output of which is connected to the first input of the second prohibition element, the second input of which is dsoedinen to the other input of the shift register and to another element vhodu.pervogo prohibition and it supplies a clock pulse, a second input

0 prohibition element is connected via a pulse shaper to the input of the first delay element and to the first input of the read unit, the output of the first delay element is connected through the serially connected discharge counter and the read unit connected to the inputs of the counter unit, the second delay element whose output is connected to the other inputs of the account unit 0 the output of the element OR is connected to another input of the counter, the decoder, the reference signal tl is fed to the second inputs of the multipliers.

However, the known device has a low accuracy of monitoring of the communication channel state.

The purpose of the invention is to improve the accuracy of monitoring the state of the communication channel by evaluating error statistics.

0 character encodings.

The goal is achieved by the fact that in the monitoring device of the communication channel, containing two chains, Ksovda of which consists of a serially connected multiplier, an integrator, a signal conditioner, an And element and a counter, the outputs of the integrators of each of the chains are connected to the first and the second input of the comparison element the second output of the signal generator of the first chain is connected to another input of the element AND the second chain, the second output of the signal generator of the second chain is connected to another input of the element And the first chain , the outputs of the counters of the first and second chains are connected to one and the other inputs of the comparison element, the output of which through the integrator is connected to the combined other inputs of the two chain conditioners, the outputs of the elements AND of each chain are connected respectively to the first and second inputs of the element OR whose output is connected through the shift register to the trigger trigger input and through the first interdiction element connected in series and the counter to the second trigger input, the output of which is connected to the first input of the second interception element that, the second input, which is connected to another input of the shift register and to the other input of the first prohibition element and clock pulses are fed to it, the code of the second prohibition element is connected via a pulse shaper to the input of the first delay element and the first input of the readout unit, the output of the first delay element through a serially connected bit counter and a read block is connected to the inputs of the counter block, the second delay element, the output of which is connected to other inputs of the counter block, the output of the element OR A reference signal is supplied to another counter input, a decoder, a reference signal is fed to the second multiplier inputs, an adder, a signal copy generator, a control unit, a block of memory elements, three AND blocks, a mismatch element, an additional counter block, and an indicator are entered, while the first accumulator input is the input of the device, the second input is connected to the output of the signal copy generator and the output is connected to the combined inputs of the multipliers of the first and second chains, the first output of the control unit is connected to the input of the copy signal generator, the second - to the first input of the mismatch element and to the first inputs of the block of memory elements, the third one - to the first inputs of the first block of And elements, the fourth to the input of the second delay element, fifth through the second block of elements

And to the same inputs of the decoder, the sixth through the third block of elements And to the other inputs of the decoder, the outputs of which are connected to the inputs of the indicator, the outputs of the block of memory elements are connected through the serially connected first block of And elements and the additional block of counters connected to the second inputs of the third block of And elements the second input of the mismatch element is connected to the output of the reference element, and the output is connected to the second input of the block of memory elements, the output of the second delay element is connected to other inputs of the additional block and counters, clock pulses are applied to the input of the control unit.

The drawing shows a structural electrical circuit of the proposed device.

The device for monitoring the state of the communication channel contains a readout block 1, a block of 2 meters, an adder 3, a generator of 4 copies of the signal, a control block 5, a mismatch element b, a block of 7 memory elements, the first, second and third blocks 8, 9 and 10 of the AND elements respectively, an additional block of 11 counters, a decoder 12, an indicator 13, two multipliers 14, two integrators 15, an element

16 comparison, two shapers

17 and 18 signals, two elements 19

and 20 AND, - two counters 21 and 22, an element of 23. comparison, integrator 24, element 25 OR, first and second elements 26 and 27 of the prohibition, respectively, counter 28, shift register 29, trigger 30, pulse shaper 31, first and second delay elements 32 and 33, respectively, bit counter 34. Moreover, clock pulses are applied to the inputs of the control unit, the shift register, the first and second prohibition elements, and the reference signal is fed to the second inputs of the multipliers.

The device works as follows.

Claims (1)

1. USSR author's certificate 568170, cl. H 04 B 3/46. 1977 (prototype).