SU1660143A1 - Pulse random-stream generator - Google Patents

Description

The invention relates to a pulse technique and can be used in computing. The purpose of the invention is to expand the functionality for

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the account of ensuring the possibility of controlling the distribution of the pulse repetition intervals is achieved by introducing into the generator a random stream of pulses of a generator 2 clocks, a counter of 3 pulses, a multiplication unit 4, generators 11 and 14 of a Poisson pulse flow, element I 12, adders 13 and 19, reversible counters 15 and 18, comparison unit 16, the element OR 17 and the formation of new functional connections. The drawing also shows a one-shot 1, adders 5 and 6, an exponential voltage generator 7, a comparison unit 8, a pulse shaper 9, and a random number sensor 10. 1 il.

1660143 A1

1660143

The invention relates to a pulse

technology and can be used in computing.

The aim of the invention is to expand the functionality by providing the ability to control the distribution of the intervals of the pulse pulses.

The drawing shows the electrical functional diagram of the generator of a random stream of pulses.

The random pulse flow generator contains a serially connected one-shot 1, a clock pulse generator 2, a pulse counter 3, a multiplication unit 4, a first adder 5, a second adder 6, an exponential voltage generator 7, a first comparison unit 8, a driver of 9 pulses and a sensor 10 random numbers, the second generator 11 of the Poisson pulse flow, element 12 and the third adder 13, connected in series the first generator 14 of the Poisson pulse flow, the first reversible counter 15 and the second unit 16 comparison, serially connected element OR 17 and the second reversible counter 18, the third input of which is connected to the control input of the fourth adder 19, the input of which is connected to the second input of the counter 3 pulses, with the second input of the first reversing counter 15, 17, with the input of the third adder 13 and with the input of the sensor 10 random numbers, the outputs of which are connected to the second group of inputs of the first comparison unit 8. The output of the one-shot 1 is connected to the first input of the element OR 17, to the input of the second generator 11 of the Poisson pulse flow and to the input of the first generator 14 of the Poisson pulse flow, the output of which is connected to the third input of the second reversing counter 18, the outputs of which are connected to the second group of inputs of the multiplication unit 4 , the first group of inputs of which is connected to groups of inputs of the third and fourth adders 13 and 19. whose outputs are connected respectively to the second group of inputs of the second adder 6 and the first group of inputs ne pvogo adder 5. The output element And 12 is connected to the third input of the first reversing counter 15 and the first input of the second reversing counter 18. The output of the second block

16 comparison is connected to the first input element And 12.

Random Stream Generator Works

pulses as follows.

When starting the one-shot 1, a pulse is generated, which starts the generator 2 clocks, the first and second generators 14 and 11 of the Poisson flow of pulses, and also sets the second reversible counter 18 to the initial state Ao.

As the pulses are generated, a 2-pulse counter is filled with the 2-clock pulse generator, the output of which is proportional to the current device operation time g. This signal is multiplied by Ho in multiplication unit 4, as a result of which the signal x · Ao is formed at the output of the latter. In the initial state, the first reversible counter 15 and adders drives 13 and 19 are reset. Therefore, the signal x · Ao = x directly through the adders 5 and 6 is fed to the input of the generator 7 of the exponential voltage.

On this signal at the output of the generator 7 of the exponential voltage, a signal y = 1-e ' ^{x is formed} , which is compared in the first comparison unit 8 with a random number r generated by the sensor output 10 of random numbers. When y> g, a pulse appears at the output of the pulse shaper 9, which arrives at the output of the device. In addition, this pulse zeroes the pulse counter 3 and enters the polling input of the sensor 10 random numbers. The described processes are repeated, and as a result, pulses with an exponential distribution of the intervals between them are formed at the device output.

In addition, the pulse of the one-shot 1 starts the first and second generators 14 and 11 of the Poisson flow of pulses, which produce pulses with an exponential distribution of the repetition intervals. When generating a Poisson pulse pulse generator 14, this pulse is summed with the signal Ao in the second reversing counter 18. The same pulse goes to the summing input of the first reversing counter 15, the contents of which are compared with zero in the second comparison unit 16. When the contents of the reversible counter 15 exceed the zero element And 12, which performs the function of a key, opens and pulses of the second generator 11 of the Poisson pulse flow arrive through it.

These pulses will pass through the element And 12 until then, until the contents of the first reversible counter 15 becomes zero. The pulse from the output of the element And 12 also enters the subtractive input

1660143

The second reversible counter 18 reduces its content. As a result, a value is generated at the output of the second counter 18, which is multiplied in block 4 multiplying with the current signal ΐ from the output of the counter 5 of 3 pulses.

As a result, at the output of the exponential voltage generator 7, an exponential dependence y = 1'e ' ^{x of a} complex type is formed, due to the complex dependence of the signal x in time, which leads to a complex form of the law of the distribution of time intervals between pulses at the device output.

Claims (1)

Claim Generator random flow of pulses. containing successively connected first and second adders, an exponential voltage generator, serially connected pulse shaper and a random number sensor, one-shot, the first comparison unit, characterized in that, in order to extend the functionality by providing the ability to control the distribution of pulse repetition intervals, he entered in series connected clock pulse, pulse counter 30 and the multiplication unit, connected in series first minutes Poisson pulse stream generator, the first down counter, a second comparator unit, the second AND gate and down counter, a second input 35 coupled to an output of the OR gate, the first input of which is connected to the input of the second Poisson pulse generator, the third adder and the fourth adder, the outputs of which are connected to the first group of inputs of the first adder, the second group of inputs of which are connected to the outputs of the multiplication unit, the first group of inputs of which are connected to the group of inputs of the fourth adder, the outputs of which are connected to the second group of inputs of the second adder, the outputs of which are connected to the inputs of the exponential voltage generator, the outputs of which are connected to the first groups The first inputs of the first comparison unit, the second group of inputs and the output of which are connected respectively with the outputs of the random number sensor and the input of the pulse shaper. · The output of which is connected to the second input of the OR element 20, to the second input of the pulse counter, to the second input of the first reversible counter and to the inputs of the third and fourth adders, the control inputs of which are connected respectively to the output of the And element and to the output of the first generator of the Poisson pulse flow, the input of which is connected to the output of the one-shot, to the input of the clock pulse generator and to the input of the second generator of the Poisson pulse flow, the output of which is connected to the I by the second input of the element I, whose output to one with a third input of the first down counter having a first input connected to the third input of the second down counter, which outputs are connected to inputs of the second group of multiplying unit.