RU2340098C1 - Information transmission and receiving system - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: system for transmitting and receiving information consists of a series of functionally connected heterogeneous information sources, unit for compressing binary digital streams, high frequency signal modulator, transmitter, communication channel, receiver, high frequency signal demodulator, decompression unit, information users and, if necessary, unit for formatting and multiple access. The compression unit is made with provision producing in its processor, from 1 to K binary digits of synchronised binary digital streams, simultaneously after each readout cycle, multiplication by positive numbers, which are generated, for example from rapidly rising numbers, using the Merkle-Hellman method, and summation of the values with obtaining of a stream of digital symbols. The decompression unit is made with provision for, simultaneously in one cycle, converting, in its processor, a stream of digital symbols, in accordance with the Merkle-Hellman method, into another stream of digital symbols, which are later converted.

EFFECT: increased efficiency of using frequency response.

2 cl, 1 dwg, 1 tbl

Description

The invention relates to communication technology, and more specifically to a system of transmission and reception of information (SPPI) through digital communication. The growing number of operators and subscribers, including cellular communications, exacerbates the problem of rational use of the frequency resource, which, in turn, requires further development and improvement of systems and methods for transmitting and receiving information. The invention allows to increase the capacitance of any existing passive interference suppression system for a given number of frequency bands allocated for operation of the system or to provide a specified capacity of the system with a smaller number of frequency bands, i.e. save frequency resource and increase the technical and economic efficiency of communication systems, taking into account all the components that affect its full cost and technical indicators.

A known system for transmitting and receiving information [Radio engineering: Encyclopedia / ed. Yu.L. Mazora et al. - M.: Dodeka-XXI Publishing House, 2002, pp. 63-64], the features of which are implemented, in essence, in all relevant systems and which is an analogue of the proposed technical solution. This system contains functionally sequentially connected information source, physical-electrical information converter, encoder, transmitting device, communication channel, receiving device, decoder, electrophysical information converter, information consumer.

, из K_n источников информации из n-той группы источников информации, где

, подключен, в том числе, при необходимости ее форматирования в цифровой поток через свой блок форматирования, к одному из К_n входов n-того блока уплотнения синхронизированных бинарных цифровых потоков, который выходом подключен через снабженный генератором несущей частоты n-тый модулятор высокочастотного сигнала к передатчику, функционально связанному через канал передачи, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником, который подключен через n-тый демодулятор высокочастотного сигнала ко входу по крайней мере одного n-того блока разуплотнения синхронизированного цифрового потока, каждый из К_n выходов которого подключен, в том числе, при необходимости форматирования цифрового потока в поток информации через свой блок форматирования, к соответствующему потребителю информации, при этом все указанные блоки функционально связаны с системой синхронизации, а при необходимости обеспечения множественного доступа, например, с кодовым разделением, в систему передачи и приема информации перед передатчиком введены умножитель модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t), причем кодовые функции {g_n(t} приблизительно взаимно ортогональны, и блок множественного доступа, имеющий N входов для доступа потоков сигналов g_n(t)s_n(t), в том числе других групп источников информации, и их суммирования, а после приемника введен блок множественного доступа, имеющий N выходов синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненный с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход n-того демодулятора сигнала [Скляр Бернард. Цифровая связь. Теоретические основы и практическое применение. Изд. 2-е, испр.: пер. с англ. - М.: Издательский дом «Вильяме», 2004. - 1104 с. (прототип с.32-36, 782, 783)]. Недостатком известных СППИ и прототипа по сравнению с заявляемой СППИ является исчерпание ими возможности дальнейшего повышения их технико-экономической эффективности.The closest analogue (prototype) of the present invention is a system for transmitting and receiving information from information sources to its consumers via digital communication, in which every k-th, where

, from K _n information sources from the nth group of information sources, where

is connected, including, if necessary, to format it into a digital stream through its formatting unit, to one of the K _n inputs of the nth synchronization binary digital stream compaction unit, which is connected via the output of the nth high-frequency signal modulator equipped with a carrier frequency generator to a transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal, at least one receiver, which is connected through the nth demodulator of the high-frequency signal to the input at least one n-order demultiplexer synchronized digital stream block, each of K _n outputs is connected, including, if necessary formatting digital stream in the flow of information through its block format, the corresponding information to the consumer, all of said blocks operatively linked with a synchronization system, and if necessary, providing multiple access, for example, with code division, a modulator multiplier is introduced in front of the transmitter in the information transmission and reception system of a given signal s _n (t) = A _n (t) cos [ω ₀ t + ψ _n (t)] per code signal g _n (t), moreover, the code functions {g _n (t} are approximately mutually orthogonal, and the block of multiple an access having N inputs for accessing the signal streams g _n (t) s _n (t), including other groups of information sources, and summing them, and after the receiver, a multiple access unit having N outputs of synchronized signal streams, including for other groups of information consumers, and configured to synchronously multiply the received signal

for each nth of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the nth signal demodulator [Sklyar Bernard. Digital communication. Theoretical foundations and practical application. Ed. 2nd, rev .: trans. from English - M.: Publishing House "Williams", 2004. - 1104 p. (prototype p.32-36, 782, 783)]. A disadvantage of the known SPPI and prototype compared with the claimed SPPI is the exhaustion of the possibility of further improving their technical and economic efficiency.

посредством применения схемы Меркла-Хэллмана, и суммирования величин а_kx_k с получением потока цифровых символов

и введению в блок разуплотнения процессора, выполненного с возможностью производства одновременного за такт преобразования потока цифровых символов S_n в соответствии со схемой Меркла-Хэллмана в поток цифровых символов

и

преобразуют согласно соотношению

, если

, х_i=1, если

, где i=K_n-1, K_n-2, ..., 1 и х_i=0 в других случаях, в К_n синхронизированных бинарных цифровых потоков, подаваемых упорядоченно, как при упомянутом считывании, к выходам блока разуплотнения.The essence of the invention is aimed at increasing the technical and economic efficiency of the SPPI due to the introduction of a processor compaction unit capable of producing an ordered simultaneous reading of binary digits x _k = 0.1 of synchronized binary digital streams, multiplying x _k by positive numbers a _k , which form e.g. from fast-growing numbers

by applying the Merkle-Hellman scheme, and summing the values of a _k x _k to obtain a stream of digital characters

and introducing into the decompression unit a processor configured to simultaneously convert a digital symbol stream S _n in accordance with the Merkle-Hellman scheme into a digital symbol stream per cycle

and

convert according to the ratio

, if

, x _i = 1, if

, where i = K _n -1, K _n -2, ..., 1 and x _i = 0 in other cases, in K _n synchronized binary digital streams supplied in an orderly manner, as with the said reading, to the outputs of the decompression unit.

, из К_n источников информации из n-той группы источников информации, где

, подключен, в том числе при необходимости ее форматирования в цифровой поток через свой блок форматирования, к одному из К_n входов n-того блока уплотнения синхронизированных бинарных цифровых потоков, который выходом подключен через снабженный генератором несущей частоты n-тый модулятор высокочастотного сигнала к передатчику, функционально связанному через канал передачи, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником, который подключен через n-тый демодулятор высокочастотного сигнала ко входу по крайней мере одного n-того блока разуплотнения синхронизированного цифрового потока, каждый из К_n выходов которого подключен, в том числе при необходимости форматирования цифрового потока в поток информации через свой блок форматирования, к соответствующему потребителю информации, при этом все указанные блоки функционально связаны с системой синхронизации, а при необходимости обеспечения множественного доступа, например, с кодовым разделением, в систему передачи и приема информации перед передатчиком введены умножитель модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t), причем кодовые функции {g_n(t} приблизительно взаимно ортогональны, и блок множественного доступа, имеющий N входов для доступа потоков сигналов g_n(t)s_n(t), в том числе других групп источников информации, и их суммирования, а после приемника введен блок множественного доступа, имеющий N выходов синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненный с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход n-того демодулятора сигнала, в соответствии с настоящим изобретением n-тый блок уплотнения выполнен с возможностью производства в его процессоре упорядоченного, например, последовательного от 1 до К_n, одновременного за такт считывания двоичных цифр х_k=0,1 синхронизированных бинарных цифровых потоков, умножения x_k на положительные числа a_k, которые образуют, например, из быстровозрастающих чисел

посредством применения схемы Меркла-Хэллмана, и суммирования величин а_kx_k с получением n-того потока цифровых символов

, а n-тый блок разуплотнения выполнен с возможностью одновременного за такт преобразования в его процессоре n-того потока цифровых символов S_n в соответствии со схемой Меркла-Хэллмана в поток цифровых символов

и

преобразуют согласно соотношению

, если

х_i=1, если

где i=K_n-1, K_n-2, ..., 1 и х_i=0 в других случаях, в К_n синхронизированных бинарных цифровых потоков, подаваемых упорядоченно, как при упомянутом считывании, к выходам n-того блока разуплотнения, при этом процессор блока уплотнения имеет по крайней мере К_n входов, являющихся упомянутыми входами подключения блока уплотнения, и по крайней мере один выход, являющийся упомянутым выходом подключения к модулятору, и процессор блока разуплотнения имеет по крайней мере один вход, являющийся упомянутым входом подключения блока разуплотнения к демодулятору, и по крайней мере К_l выходов, являющихся упомянутыми выходами подключения блока разуплотнения.To achieve the specified technical result in the system of transmitting and receiving information from information sources to its consumers through digital communication, in which every k-th, where

, from K _n information sources from the n-th group of information sources, where

, is connected, including if necessary to format it into a digital stream through its formatting unit, to one of the K _n inputs of the nth synchronization binary digital stream compaction unit, which is connected via the output of the nth high-frequency signal modulator equipped with a carrier generator to the transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal to at least one receiver that is connected via the nth demodulator of the high-frequency signal to the input at least one n-th decompression unit of the synchronized digital stream, each of the K _n outputs of which is connected, including if necessary, formatting the digital stream into the information stream through its formatting unit, to the corresponding consumer of information, while all of these blocks are functionally connected with a synchronization system, and if necessary, providing multiple access, for example, with code division, a multiplier of modules was introduced in front of the transmitter in the system of transmitting and receiving information of a given signal s _n (t) = A _n (t) cos [ω ₀ t + ψ _n (t)] per code signal g _n (t), moreover, the code functions {g _n (t} are approximately mutually orthogonal, and the block of multiple an access having N inputs for accessing the signal streams g _n (t) s _n (t), including other groups of information sources, and summing them, and after the receiver, a multiple access unit having N outputs of synchronized signal streams, including for other groups of information consumers, and configured to synchronously multiply the received signal

for every nth of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the nth signal demodulator, in accordance with the present invention, the nth the compaction unit is configured to produce in its processor an ordered, for example, sequential from 1 to K _n , simultaneous for the cycle of reading binary digits x _k = 0,1 synchronized binary digital streams, multiplying x _k by positive numbers a _k , which form, for example from fast growing numbers

by applying the Merkle-Hellman scheme, and summing the values of a _k x _k to obtain the nth stream of digital symbols

and the nth decompression unit is capable of simultaneously converting the nth stream of digital symbols S _n in its processor in accordance with the Merkle-Hellman scheme into a stream of digital symbols

and

convert according to the ratio

, if

x _i = 1 if

where i = K _n -1, K _n -2, ..., 1 and x _i = 0 in other cases, in K _n synchronized binary digital streams supplied in an orderly manner, as in the aforementioned reading, to the outputs of the nth decompression unit wherein, the processor of the seal unit has at least K _n inputs, which are said inputs of the connection of the seal unit, and at least one output, which is said output of the connection to the modulator, and the processor of the decompression unit has at least one input, which is the mentioned input of connection decompression unit to demodulate y, and at least _l outputs that are mentioned outputs connect decompression unit.

In addition, at least one additional channel for transmitting at least information on the reference levels of digital signals is introduced in the SIS.

In the current level of technology, no sources of information have been identified that would contain information about objects of the same purpose with the indicated set of distinctive features, which allows us to consider the SPPI of the present invention as new and having an inventive step.

The SPDI of the present invention can be embodied in a device, a block diagram of which is shown in the drawing.

In the drawing, the numbers of the digital streams of information sources entering the compaction unit and exiting the decompression unit are enclosed in brackets. Similarly, in brackets are numbers of digital streams of groups of information sources entering the multiple access unit on the transmitting side of the system and leaving the multiple access unit on the receiving side of the system.

Compared with generally known systems of the prior art, in the inventive SPPI, processors are introduced into the compaction and decompression units using well-known decision circuits and allowing, using appropriate software, to increase the technical and economic efficiency of the known systems.

, из К_n источников информации 1 из n-той группы источников информации, где

, подключен, в том числе при необходимости ее форматирования в цифровой поток через свой блок форматирования 3, к одному из К_n входов 4 n-того блока уплотнения 5 синхронизированных бинарных цифровых потоков, который выходом 6 подключен через n-тый модулятор высокочастотного сигнала 7, снабженный генератором несущей частоты 28, к передатчику 9, функционально связанному через канал передачи 11, совместимый с передаваемым высокочастотным сигналом, по крайней мере с одним приемником 10, который подключен через n-тый демодулятор 12 высокочастотного сигнала ко входу 13 по крайней мере одного n-того блока разуплотнения 14 синхронизированного цифрового потока, каждый из К_n выходов 15 которого подключен, в том числе при необходимости форматирования цифрового потока в поток информации через свой блок форматирования 16, к соответствующему потребителю информации 2, при этом все указанные блоки и упомянутая система функционально связаны с системой синхронизации 17. При необходимости обеспечения множественного доступа, например, с кодовым разделением, перед передатчиком 9 введены умножитель модулированного сигнала s_n(t)=A_n(t)cos[ω₀t+ψ_n(t)] на кодовый сигнал g_n(t) 29 и блок множественного доступа 18, имеющий N входов 19 для доступа потоков сигналов, в том числе других групп источников информации, и их суммирования, а после приемника 10 введен блок множественного доступа 20, имеющий N выходов 21 синхронизированных потоков сигналов, в том числе для других групп потребителей информации, и выполненный с возможностью синхронизированного умножения принятого сигнала

на каждый n-тый из N кодовых сигналов g_n(t) с выделением каждого n-того сигнала g_n ²(t)s_n(t), подаваемого на вход n-того демодулятора сигнала 12. В СППИ n-тый блок уплотнения 5 выполнен с возможностью производства в его процессоре 22 упорядоченного, например, последовательного от 1 до К_n, одновременного за такт считывания двоичных цифр x_k=0,1 синхронизированных бинарных цифровых потоков, умножения x_k на положительные числа a_k, которые образуют, например, из быстровозрастающих чисел

посредством применения схемы Меркла-Хэллмана, и суммирования величин a_kx_k с получением n-того потока цифровых символов

. При этом n-тый блок разуплотнения 14 выполнен с возможностью одновременного за такт преобразования в его процессоре 23 n-того потока цифровых символов S_n в соответствии со схемой Меркла-Хэллмана в поток цифровых символов

и

преобразуют согласно соотношению

если

х_i=1, если

где i=K_n-1, K_n-2, ..., 1 и х_i=0 в других случаях, в K_n синхронизированных бинарных цифровых потоков, подаваемых упорядоченно, как при упомянутом считывании, к выходам 15 n-того блока разуплотнения 14. При этом процессор 22 блока уплотнения 5 имеет по крайней мере К_n входов 24, являющихся упомянутыми входами 4 подключения блока уплотнения 5, и по крайней мере один выход 25, являющийся упомянутым выходом 6 подключения к модулятору 7. Процессор 23 блока разуплотнения 14 имеет по крайней мере один вход 26, являющийся упомянутым входом 13 подключения блока разуплотнения 14 к демодулятору 12, и по крайней мере K_n выходов 27, являющихся упомянутыми выходами 15 подключения блока разуплотнения 14.In the system of transmitting and receiving information from information sources 1 to its consumers 2 through digital communication, each k-th, where

, from K _n information sources 1 from the n-th group of information sources, where

is connected, including if necessary to format it into a digital stream through its formatting unit 3, to one of the K _n inputs 4 of the nth compaction unit 5 of synchronized binary digital streams, which output 6 is connected through the nth modulator of the high-frequency signal 7, equipped with a carrier frequency generator 28, to the transmitter 9, functionally connected through the transmission channel 11, compatible with the transmitted high-frequency signal, at least one receiver 10, which is connected through the nth demodulator 12 of the high-frequency drove to the input 13 of at least one n-th decompression unit 14 of a synchronized digital stream, each of the K _n outputs 15 of which is connected, including if necessary to format the digital stream into the information stream through its formatting unit 16, to the corresponding information consumer 2, however, all of these blocks and the said system are functionally connected with the synchronization system 17. If it is necessary to provide multiple access, for example, with code division, a mode multiplier is introduced before the transmitter 9 th e signal _{s n (t) = A n} (t) cos [ω ₀ t + ψ _n (t)] on the code signal g _n (t) 29 and block multiple access 18 having N inputs 19 for access signal flows, including other groups of information sources, and their summation, and after the receiver 10, a multiple access unit 20 is introduced, having N outputs 21 of synchronized signal streams, including for other groups of information consumers, and configured to synchronously multiply the received signal

for each nth of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the nth demodulator of signal 12. In SPPI, the nth compaction block 5 is configured to produce, in its processor 22, an ordered, for example, sequential from 1 to K _n , simultaneous reading of binary digits x _k = 0,1 of synchronized binary digital streams, multiplying x _k by positive numbers a _k , which form, for example from fast growing numbers

by applying the Merkle-Hellman scheme, and summing the values a _k x _k to obtain the nth stream of digital symbols

. Moreover, the nth decompression unit 14 is configured to simultaneously convert the n-th stream of digital symbols S _n in its processor 23 in accordance with the Merkle-Hellman scheme to a stream of digital symbols

and

convert according to the ratio

if

x _i = 1 if

where i = K _n -1, K _n -2, ..., 1 and x _i = 0 in other cases, in K _n synchronized binary digital streams, supplied in order, as in the above reading, to the outputs 15 of the n-th block decompression 14. In this case, the processor 22 of the seal unit 5 has at least K _n inputs 24, which are said inputs 4 of the connection of the seal unit 5, and at least one output 25, which is said output 6 of the connection to the modulator 7. The processor 23 of the decompression unit 14 has at least one input 26, which is said input 13 connecting the unit 14 to the demodulator 12, and at least K _n outputs 27, which are the mentioned outputs 15 of the connection block decompression 14.

, из К_n источников информации 1 из n-той группы источников информации, где

, подают, в том числе при необходимости, через свой блок форматирования 3, в котором информацию форматируют в цифровой поток, к одному из К_n входов 4 n-того блока уплотнения 5, соединенного с одним из входов процессора 22. В процессоре 22 n-того блока уплотнения 5 упорядоченно, например, последовательно от 1 до К_n, одновременно за такт считывают двоичные цифры х_k=0,1 синхронизированных бинарных цифровых потоков, поступающих в процессор через К_n входов 24, умножают х_k на положительные числа a_k, которые образуют, например, из быстровозрастающих чисел

посредством применения схемы Меркла-Хэллмана, и суммируют величины а_kx_k с получением n-того потока цифровых символов

. Схема Меркла-Хэллмана [Mercal R.C. and Hellman M.E. Hiding Information and Signatures in Irap-Door Knapsacks. IEEE, Trans. Inf. Theory, vol. IT24, September, 1978, pp.525-530] основана на образовании вектора рюкзака, который не является быстровозрастающим. При этом задача о рюкзаке обязательно включает «лазейку», позволяющую авторизованным пользователям решить задачу.The system operates as follows. Information of every k-th where

, from K _n information sources 1 from the n-th group of information sources, where

, fed, including if necessary, through its formatting unit 3, in which the information is formatted into a digital stream, to one of the K _n inputs 4 of the n-th block of the seal 5 connected to one of the inputs of the processor 22. In the processor 22 n of the compression unit 5 in an orderly manner, for example, sequentially from 1 to K _n , at the same time, binary digits x _k = 0.1 of the synchronized binary digital streams entering the processor through K _n inputs 24 are read per clock, multiply x _k by positive numbers a _k , which form, for example, from rapidly growing numbers

by applying the Merkle-Hellman scheme, and summarize the values a _k x _k to obtain the nth stream of digital symbols

. Merkle-Hellman Scheme [Mercal RC and Hellman ME Hiding Information and Signatures in Irap-Door Knapsacks. IEEE, Trans. Inf. Theory, vol. IT24, September, 1978, pp.525-530] is based on the formation of a backpack vector, which is not rapidly growing. At the same time, the task of the backpack necessarily includes a “loophole” that allows authorized users to solve the problem.

если

х_i=1, если

где i=K_n-1, K_n-2, ..., 1 и х_i=0 в других случаях, в K_n синхронизированных бинарных цифровых потоков. Эти потоки подают с выходов 27 процессора, являющихся упомянутыми выходами 15 блока разуплотнения 14, в том числе при необходимости, к своим блокам форматирования 16. В блоках 16 цифровые потоки форматируют в информацию, которую направляют к соответствующим потребителям информации 2. При этом производят синхронизацию функционирования всех указанных блоков.Next, the stream of digital symbols is fed from the output 25 of the processor, which is the mentioned output 6 of the sealing unit 5, to the input of the modulator 7, equipped with a carrier frequency generator 28, and then transmitted through the transmitter 9 to at least one receiver 10 via a transmission channel 11 compatible with the transmitted high frequency signal. The received signal stream is fed to the input of the n-th demodulator of the high-frequency signal 12. The synchronized digital stream from the output of the demodulator 12 is fed to the input 13 of at least one n-th block of decompression 14 connected to the input 26 of the processor 23. In the processor 23 of the n-th block decompressions 14 at the same time convert the nth stream of digital symbols S _n in accordance with the Merkle-Hellman scheme into a stream of digital symbols S '^ and ^ transform according to the relation

if

x _i = 1 if

where i = K _n -1, K _n -2, ..., 1 and x _i = 0 in other cases, in K _n synchronized binary digital streams. These streams are supplied from the outputs 27 of the processor, which are the mentioned outputs 15 of the decompression unit 14, including, if necessary, to their formatting units 16. In blocks 16, the digital streams are formatted into information that is sent to the corresponding consumers of information 2. In this case, the operation is synchronized all specified blocks.

на каждый n-тый из N кодовых сигналов g_n(t), выделяют каждый n-тый сигнал g_n ²(t)s_n(t) и подают его на вход n-того демодулятора сигнала 12. На чертеже блоки множественного доступа 18 и 20 на передающей и приемной сторонах соответственно дополнительно объединены пунктирной линией 8, что означает их использование при необходимости. При отсутствии таковой сигнал из модулятора 7 подают на передатчик 9, а из приемника 10 - на демодулятор 12 по линиям связи, обозначенным n.If it is necessary to provide multiple access, for example, with code division, before the transmitter 9, the modulated signal s _n (t) = A _n (t) cos [ω ₀ t + ψ _n (t)] is multiplied by the code signal g _n (t) in multiplier 29 (the code functions {g _n (t)} are approximately mutually orthogonal) and sum the synchronized signal streams g _n (t) s _n (t) in the multiple access unit 18 having N inputs 19 for access, including other groups of sources information, and after the receiver 10, synchronized signal streams are shared in the multiple access unit 20 having N outputs 21, including for other groups of information consumers. In the block of multiple access 20 produce synchronized multiplication of the received signal

for every nth of N code signals g _n (t), each n-th signal g _n ² (t) s _n (t) is extracted and fed to the input of the nth demodulator of signal 12. In the drawing, multiple access units 18 and 20 on the transmitting and receiving sides, respectively, are additionally combined by a dashed line 8, which means their use if necessary. In the absence of such a signal from the modulator 7 is fed to the transmitter 9, and from the receiver 10 to the demodulator 12 via the communication lines indicated by n.

To increase the reliability of the system, it is advisable to transmit information about the reference, for example, single, levels of digital signals. It can be transmitted, for example, after several clock cycles on the main channel. However, in some cases, it may be advisable to use an additional channel to transmit this and other information necessary for the organization of the system. Therefore, at least information about the reference levels of digital signals is transmitted through at least one additional transmission channel.

In the processor of the compaction unit, at each clock cycle (i.e., simultaneously), information from K _n sources is orderly read. Note that each information channel can carry information of any kind, for example, encoded by any code or a mixture of codes. The read information is converted to a stream of digital characters. In the processor of the decompression unit, at the same time, the digital symbol stream is restored (decompressed) to K _n synchronized binary digital streams and fed them in an orderly manner, as when reading the compaction unit in the processor, to K _n consumers in a form convenient for them. All blocks of this SPPI can be made the same as in the closest analogue or in other systems of the same purpose. The timing and synchronization issues of the transmitting and receiving sides of the system used are solved by any means well known in the art, for example, in the same way as in the prototype. In some cases, it is sufficient to use one decompression unit, from each output of which information is sent to the corresponding consumer of information. In some cases, two or more, up to K _n , decompression blocks can be used. For example, in cellular communications, each mobile station includes a decompression unit. From the stream of digital symbols coming into this block, a binary digital stream is allocated that is currently addressed only to this consumer. Thus, in cellular communications, the signal flow is delivered to all consumers, and the decompression procedure is performed by each final destination.

Effective computational algorithms, including well-known ones, are used for compaction and decompression (restoration of initial information), which facilitates their hardware-software implementation.

Below is a table illustrating the transmission and reception of three streams of text information in the inventive system:

) (Попов •

) (Сименс •).The table in columns 1, 4, 7 shows the streams of textual information of three sources: (Hertz •

) (Popov •

) (Siemens •).

Columns 2, 5, 8 show binary digital streams x ₁ , x ₂ , x ₃ corresponding to the text information, respectively. Sealing and decompression are made according to the rule given in the above example in the distinctive part of the claimed invention.

,

,

. Сумма этих чисел равна 7. Далее выбрано простое число М=11, превосходящее эту сумму, и случайное число W(1<W<М), равное 4. Сформировано W^-1, удовлетворяющее соотношению WW^-1mod M=1, оно равно 3. Значения а_i получены по формуле

и равны a₁=4, a₂=8, а₃=5.The following values for rapidly growing numbers are selected:

,

,

. The sum of these numbers is 7. Next, a prime number M = 11 is selected that exceeds this sum, and a random number W (1 <W <M) is 4. Formed W ^-1 , satisfying the relation WW ^-1 mod M = 1, it is equal to 3. The values of a _i obtained by the formula

and are equal to a ₁ = 4, a ₂ = 8, and ₃ = 5.

Columns 3, 6, 9 show the products a ₁ x ₁ , ₂ x ₂ , and ₃ x _3, respectively.

, полученных в процессоре 22 блока уплотнения 5 путем упорядоченного, последовательно от первого до третьего потока, одновременного за такт считывания двоичных цифр бинарных цифровых потоков и их преобразования в указанный поток цифровых символов.Column 10 shows the transmitted stream of digital characters

obtained in the processor 22 of the compression unit 5 by ordering, sequentially from the first to the third stream, simultaneously for the cycle of reading the binary digits of binary digital streams and converting them into the specified stream of digital symbols.

- пробел.Column 11 shows the digital symbol stream S 'converted in accordance with the formula S ′ = W ⁻¹ S mod M. Columns 12, 14, 16 show the results of the simultaneous conversion of the digital symbol stream S 'into three binary digital streams in the processor 23 of the decompression unit 14 into three binary digital streams, which are supplied in an orderly manner, as in the aforementioned reading, to the outputs of the decompression unit and then distributed to the corresponding consumers of information. Columns 13, 15, 17 show the streams of text information received by the recipients. The table indicates: • - point,

- space.

This simplest possible example of the use of the claimed SPSI clearly shows the possibility of simultaneous transmission and reception of three streams of text information on one channel, which increases the efficiency of using the frequency resource. In addition, the invention improves the structural and informational secrecy of the transmitted digital signal in addition to the coding laws used.

We also note that the above example of obtaining a stream of digital symbols and its inverse conversion to binary digital streams is equivalent to solving a problem based on the formation of a backpack vector, which is not rapidly growing (Merkle-Hellman scheme). At the same time, as indicated, the backpack problem necessarily includes a loophole that allows authorized users to solve the problem.

The present invention is useful in that it can be applied in practice for the development and improvement of any digital communication system with any organization of its work, for example, already using well-known multiple access methods (with frequency, time, code, spatial and polarization separation) and known methods signal processing, including, for example, for all known cellular standards.

Industrial applicability. The present invention can be applied in SPSI using high-frequency signals in any communication system. SPPI according to this invention allows you to effectively use the frequency resource and can work simultaneously with a large number of heterogeneous information.

The analysis made it possible to establish: analogues with a set of features identical to all the features of the claimed technical solution are absent, which indicates the conformity of the claimed system to the “novelty” condition.

The search results for well-known solutions in the field of API for the purpose of identifying features that match the distinctive features of the claimed system from the prototype have shown that they do not follow explicitly from the prior art. Therefore, the claimed invention meets the condition of patentability "inventive step".

Claims (2)

1. A system for transmitting and receiving information from information sources to its consumers through digital communication, in which every k-th, where

from K _n sources of information from the n-th group of information sources, where

connected, including, if necessary, to format it into a digital stream through its formatting unit, to one of the K _n inputs of the nth compaction unit, synchronized binary digital streams, which is connected via an output the n-th modulator of the high-frequency signal provided with a carrier frequency generator to a transmitter functionally connected through a transmission channel compatible with the transmitted high-frequency signal, at least one receiver, which is connected through the n-th demodulator of the high-frequency signal to the input, at least one nth decompression block of a synchronized digital stream, each of the K _n outputs of which is connected, including, if necessary, formatting the digital stream into the information stream through its formatting unit, to the corresponding consumer of information, while all of these blocks are functionally connected with a synchronization system, and if necessary, providing multiple access, for example, with code division, a modulator multiplier is included in the information transmission and reception system in front of the transmitter Nogo signal _{s n (t) = A n} (t) cos [ω ₀ t + ψ _n (t)] on the code signal g _n (t), and code function {(g _n (t)} approximately mutually orthogonal, and a multiple access unit having N inputs for accessing signal streams g _n (t) s _n (t), including other groups of information sources, and summing them, and after the receiver, a multiple access unit having N outputs of synchronized signal streams is included, including for other groups of information consumers, and configured to synchronously multiply the received signal

for each n-th of N code signals g _n (t) with the allocation of each n-th signal g _n ² (t) s _n (t) supplied to the input of the n-th signal demodulator, characterized in that the n-th block the compaction is performed on the compaction processor with the possibility of ordered, for example, sequential from 1 to K _n simultaneous reading of binary digits x _k = 0.1 of synchronized binary digital streams, multiplying x _k by positive numbers a _k , which form, for example, from rapidly growing numbers and _'Kn by applying circuit Merkle-Hellman, and summing ve Ichin a _k x _k to obtain the n-th stream of digital symbols

and the nth decompression unit is made on the decompression processor with the possibility of simultaneously converting the nth stream of digital symbols S _n in accordance with the Merkle-Hellman scheme into a stream of digital symbols S ' _n and S' _{n at a time} , according to the ratio

if

x _i = 1 if

where i = K _n -1, K _n -2, ..., 1, and x _i = 0 in other cases, in K _n synchronized binary digital streams supplied in order, as in the above reading, to the outputs of the nth block decompression of the decompression processor, wherein the compression processor has at least K _n inputs, which are said inputs of the connection of the sealing unit, and at least one output, which is said output of the connection to the modulator, and the decompression processor has at least one input, which is said input decompression unit connection to the demodulator, and at least K _n outputs, which are the mentioned outputs of the connection block decompression. 2. The system according to claim 1, characterized in that at least one additional channel for transmitting at least information about the reference levels of digital signals is introduced to transmit information necessary for organizing the operation of the system.