SU496664A1 - Random Burst Generator - Google Patents

Description

(54) GENERATOR OF RANDOM PULSES PACKS

one

The invention relates to computing and measuring technology and communication technology, is intended to simulate and simulate random processes and can be used in studies of various discrete. communication devices.

Known generators of bursts of random pulses are known that contain a clock pulse generator connected to the input of a controlled frequency divider and an input of a device for forming random pulses, the other input of which is connected to a noise source and the output to the inputs of a register and a key.

The purpose of the invention is to form pack durations and intervals according to the law of random number distribution.

For this, a trigger is introduced into the proposed device, the output of which is connected to the second, the key input, and the first inputs of which are connected to the register outputs, the outputs to the control inputs of the controlled frequency divider, and the second inputs to the common connection point

output controlled frequency divider with a counting trigger input. . The drawing shows a block diagram of the proposed generator packs of random pulses.

The device consists of a source of noise 1, a device 2 for the formation of random pulses, a register 3 on, fl bits of the circuits AND 4-4, a controlled divider

frequency 5, trigger 6, key 7, generator 8 clock pulses.

In binary code, the ti bits of a random pulse train are a random number,

hence some number (W - K -)

is also random (/ n is a constant).

Random sequence of pulses goes to the output within (W-kj)

cycles (, determine the duration of the packet, The duration of the interval between packets is determined by the subsequent random number

Claims (1)

(m - (co), etc.). A random sequence of a pulse generated by the source of noise 1 and, vom 2 of the random M1 forms, fills register 3 for n bits,. A random sequence of pulses entering the retist 3 is some random number k; k An impulse generated by the dam where the frequency divider 5 is filled (the divider by rb 2 performs a parallel transfer to the frequency divider 5 through the AND 4, -4 schemes the recorded random number in the register. When arriving at the input of the frequency divider 5 pulses from the generator output divider a pulse appears 8. Since it is a random number, (fn-k;) is also a random number. Each pulse from the output of frequency divider 5 flips C9 trigger 6, opening for (/ 77-k) clocks; and closing for i following (hi - kp) clock cycles, 7, The latter skips a random sequence of pulses to the output, forms a packet of random pulses, and then key 7 closes, forming an interval between the packets. Thus, the frequency divider 5 i together with the AND schemes and register 3 form a frequency divider with a variable time coefficient dividing (1 to 2), and whereby the pulses are generated random packet duration and intervals between them. Claim Generator A random burst generator, comprising a clock pulse generator; connected to the input of the controlled frequency divider and the input of the device for forming random pulses, the other input of which is connected to the noise source and the output to the register input and the key input. characterized by the fact that, in order to form packs and intervals according to the distribution of random numbers, a trigger is inserted in it, the output of which is connected to the second input of the key, and the circuit I, the first inputs of which are connected to the outputs of the register, the outputs to the control inputs of the controlled frequency divider, and the second inputs to the common connection point of the output of the controlled frequency divider with the counting input of the trigger.