SU1629993A1 - Noise-like signal data transmitter - Google Patents

Abstract

The invention relates to the transmission of information by noise-like signals and can be used for communication by radio and wired channels. The purpose of the invention is to simplify the device. The device contains on the transmitting side a source of 1 information, ai, gr 2 binary pseudo-gum codes, block 3

Description

The invention relates to the transmission of information by noise-like signals and can be used for communication by radio and wired channels.

The aim of the invention is to simplify the device by reducing the number of analyzers.

The drawing shows a functional diagram of the device for transmitting information using noise-reducing signals.

The device contains on the transmitting side a source of information 1, a generator of 2 binary pseudo-noise codes, a delay unit 3, a mixer 4, a carrier signal generator 5, a clock pulse generator 6, a clock signal generator 7, a signal accumulator 8. The receiving part contains a pretreatment unit 9,

synchronization unit 10, decision unit 11, shift register 12, multiplexer 13, memory unit 14, 2 EI adders 15 modulo two, 16 clock pulse generator, logic unit 17, counter 18, 2 t of analyzers 19.

The device works as follows.

Generator 6 is turned on. Under a signal from another generator output 6, information source 1 sets (1 + n) information bits on its outputs, 1 and n bits of which are fed to one input of blocks 3 and 4 and generator 2, respectively, the last transition t is in the initial state, and the generator 7 generates a sync signal. Under the action of signals from one output of generator 6, coming through the third input of block 3, to the input of generator 2 (the delay is 0 t, e. (2 - 1) Ds), Dc is the interval between clock pulses of one output

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generator 6, depending on 1 bit, arriving at one input of block 3, the latter produces the GOCHK elements and feeds them to one input of mixer 4 (the PIC view determines yy bits arriving at one input of generator 2 from other outputs of information source 1) which mixes them with the signal arriving at its other output from the output of generator 5 and feeds the result to one input of the adder 8. The latter summarizes it with the signal coming from the output of generator 7 and transmits in the direction of the receiving side. The duration of the information signal is T MDS, where N is the number of PIC elements; the duration of the sync signal tss ё. T. After every (N + 2 -1) clock, the generator 6 generates a signal at its other output and the operation of the transmitting side is repeated.

On the receiving side, the signal enters the inputs of block 9 and block 10, which synchronize signals from their outputs to block 9 with the transmitting side. The signal from one output of block 9 is fed to one input of register 12. Under the action of a signal from the second output of block 9, register 12 shifts its contents by one cell and reads the first signal from one input, the analyzers nullify, and logical block 17 begins to pass to the output the pulses coming from the output of the generator 16 to its one input.

Under the influence of each of them, the counter 18 increases its content and sets the outputs of the binary code that arrives at the other address inputs of block 14 and multiplexer 13.

The latter gives a signal from the corresponding output of register 12 to one

2 m inputs of adders 15, the other inputs of which receive signals from the corresponding memory cells of block 14

The signals from the outputs of 2 n adders 15 are fed to the same inputs of 2 hectares of analyzers 19, which accumulate logical units under the influence of signals received by their third inputs. After N clock cycles, the counter 18 stops and generates a signal at its output, which arrives at the third input of the logic unit 17, which stops the signal skipping of the generator 16. The interval between the pulses of the generator 16 clock pulses is

At, u t / N.

Under the influence of the following pulses from the second output of block 9, logical block 17 opens and the procedure is repeated. Resolving unit 11 analyzes the signals arriving at its third outputs from the tricks 2 and 2 of the analyzers 19 and at the moment of the output of any of them of a signal of a given level (code of the desired value) stops and sets the transmitted information at its outputs.

Expansion of functionality is achieved through the use of a persistent storage device for storing reference codes, the use of an arbitrary pseudo-orthogonal code system having a larger volume extends the functionality and allows an increase in the speed of information transfer.

Claims (1)

Invention Formula A device for transmitting information. Noise-like signals, containing on the transmitting side an information source, a clock pulse generator (GTI), a clock signal generator, a carrier signal generator (HLS) and, consequently, a connected delay unit, binary pseudo noise code generator, a mixer and a signal adder, output which is the output of the transmitting part, the clock output of the GTI is connected to the clock-connected inputs of the delay unit, the information source and the gene clock signal output h five 0 connected to the synchronizer input of the signal adder, the output of the HNS is connected to the signal input of the mixer, and on the receiving side - a preprocessing unit, a shift register block, 2 ri adders modulo two, 2 ha, analyzers, as well as serially connected clock generator (PI), logic unit and counter, the first input of which is connected to the first inputs of 2 tp analyzers, the second inputs of all 2 m analyzers are interconnected and the third inputs 7. t analyzers are connected respectively to the outputs of 2 n modulo-two adders. the output of the logic block is connected to the clock input of the counter, the signal output of which is connected to the same input of the logic block, the input of the preprocessing block is the input of the receiving side, and the output of the decision block is, respectively, the output of which, for the sake of simplification devices by reducing the number of analyzers, on the transmitting side, the first and second information outputs of the information source are connected respectively to the information inputs of the delay unit and the binary pseudo noise generator x code, a clock input connected to the clock output of the GTI, the signal output of which is connected to the signal input unit adrrzhki, and on the reception side administered NOC synchronization, multiplexer and memory unit, signal inputs of which are connected with similar multiplexer inputs and is connected to the signal output five 0 five 0 the plexer is connected to the connected inputs of the same name 2 tp modulo-two adders, the information inputs of all 2 hectares of modulo-two adders are combined and connected to the information outputs of the memory block, the first and second signal outputs of the pre-block processing through the register, the shift is connected to the information inputs of the multiplexer, the second and third signal outputs of the preprocessing block are connected respectively to the connected special input of the logic unit, to the combined second inputs of all 2 hectares of analyzers, to the first signal input of the decisive block 16299938 The ka and to the second signal input are reconnected respectively with the input and the melting block, the first, the second and the three-output block of the preprocessing block, the information inputs of which.