SU805355A1 - Device for simulating pulse noise train - Google Patents

Description

(54) DEVICE FOR MODELING A FLOW OF PULSE INTERFERENCE

initial conditions block, second functional converter, third random generator key: delay line, amplitude modulator, pulse counter, the output of the initial conditions block connected to the input of the clock generator, to the second input of the first functional converter, to the second sensor input a random signal to the first input of the second functional converter, the second input of the second one is connected to the first input of the key and to the output of the first random generator, the output of the third functional transducer is connected to the input of the third 1E en “random pulse generator whose output is connected to the VTO1ZHM input / key, the third input of which is connected to the output of the clock generator, the output to the night generator is connected to the input of the second random generator the input of the pulse counter and through the delay line with the first 4 input of the amplitude modulator, the inlet of which | 1 input is connected to the output of the counter shshulsov.

The proposed device is shown in the drawing.

It contains 1 clock pulse generator, 2, 3 and 4 random pulse generators (gays), functional converters 5.-b, trigger 7, element 8, sensor 9 of random signals, block 10, initial conditions, key 11, line 12 delay, amplitude modulator 13, counter 14 pulses.

The device works in the following way.

In the initial position, the key 11 is open and passes the clock pulses from the clock pulse generator 1 to the input of gay 3, the output of which generates a random sequence of ones and zeros. A single impulse from the output of gay 3 sets trigger 7 to the position at which the element 8 opens, and the pulses from the output of sensor 9 of random signals, in which the frequency of the incoming pulses converts to a new random frequency, they enter the counter of 14 pulses and the second the input of the amplitude modulator 13 through the delay line 12, the first input of which receives a signal from the output of the counter 14.

The same unit impulse from the output of GS1I 3 is fed to the input of functional converter 5, with which the parameters of the Poisson flow from the output of GSI 2 are set. The voltage at the output of functional converter 5 is changed according to the law M and (t) determined by the statistical structure of the duration of the outbreaks.

In the simplest case, an integrating element with a time constant tp is used as a functional converter 5. A single impulse at the exit of the ICG 2 sets the trigger 7 to the position at which the And 8 element closes. Thus, a random burst or burst of pulses is formed.

The same single impulse from the output of ICG 2 key 11 closes the input of ICG 3, which simulates the moment of the beginning of a pause between packs. The moment of the end of the pause between the bursts is formed using functional converter 6 and GSI 4 when a single signal is output from the GSI 2 output to functional converter 6 as well as in the case of forming the end of the pack with the difference that the parameters of the functional converter 6 are chosen so that reflected the real gaps between the packs (by changing C (C jiT), for example). The signal from the output of the ICG 4 is fed to the input of the key 11, which opens the input to the ICG 3 clock pulses.

The amplitude modulator 13 generates the amplitude of the pulses inside the bundle, taking into account their number in the bundle and the current number according to a given law, for example, the connecting median of the previous and subsequent pulses

, + B-, where a, -, b are regression coefficients.

Thus, pits with random numbers and amplitudes of pulses inside them are formed at the output of the device, which follow from each other at intervals controlled additionally by the device. The initial task task 10 allows the flow parameter to vary over a wide range, which is important research purposes.

The proposed device allows simulation of a stream of pulses modulated in amplitude and number of pulses in a burst.

invention formula

A device for simulating a pulse noise flow comprising a clock pulse generator, the output of which is connected to the first input of the first random pulse generator, the second input of which is connected to the output of the first functional converter, the first input of which is connected to the first output of the second random pulse generator, the second output of which is connected to the first input of the trigger, the second input of which is connected to the output of the first random pulse generator, the output of the trigger is connected to the first input of the element The second input of which is connected to the output of a random signal sensor, the first input of which is connected to the output of a clock generator, characterized in that, in order to improve the accuracy of the simulation, an initial condition setting unit, a second functional converter, a third random pulse generator are added to the device, , key, delay lines, amplitude modulator, pulse counter, the output of the block specifying the initial conditions connected to the input of the clock generator, to the second input of the first The functional converter, to the second sensor input of a random signal and to the first input of the second functional converter, the second input of which is connected to the first key input and the output of the first random pulse generator, the output of the second functional converter is connected to the input of the third random pulse generator, the output of which is connected with the second. the key input, the third input of which is connected to the output of the clock generator, the output of the key is connected to the input of the second random pulse generator, the output of the element I is connected to the input of the pulse counter and through the delay line to the zero input of the amplitude modulator, the second input of which is connected .

Sources of information taken into account in the examination

1. USSR Author's Certificate No. 335684, cl. 6 06 G 7/52, 1970.

2. Authors certificate of the USSR About 326591, cl. G 06 G 7/48, i97Q

(prototype).

Claims (2)

Claim A device for simulating a pulsed noise stream containing ³³ clock pulses, the output of which is connected to the first input of the first random pulse generator, the second input of which is connected to the output of the first functional converter, the first input of which is connected to the first output of the second random pulse generator, the second output which is connected to the first input of the trigger, the second input of which 65 is connected to the output of the first random pulse generator 5, the output of the trigger is connected to the first input And, the second input of which is connected to the output of the random signal sensor, the first input of which is connected to the output of the clock pulse generator, characterized in that, in order to increase the simulation accuracy, the unit for setting the initial conditions, the second functional converter, and the third random pulse generator are additionally introduced into the device , key, delay line, amplitude modulator, pulse counter, and the output of the unit for setting the initial conditions is connected * to the input of the clock generator, to the second input of the first fu national converter, to the second input of the random signal sensor and to the first input of the second functional converter, the second input of which is connected to the first input of the key and to the output of the first random pulse generator, the output of the second functional converter is connected to the input of the third random pulse generator, _ the output of which is connected with the second. ³ the input key, a third input connected to the output of clock pulse generator, a key output coupled to an input of the second generator case ₀ pulses, an output of AND INTERCONNECTING · * nen to the input of the pulse counter and through a delay line with nulevm input of the amplitude modulator, the second input of which connected to the output of the pulse counter. 15 Sources of information taken into account in the examination 1. USSR author's certificate No. 335684, cl. b 06 G 7/52, 1970. 2. Copyright certificate of the USSR 20 · "326591, cl. G 06 G 7/48, 197 (1 (prototype).