SU1418753A1 - Device for determining distribution function of random process - Google Patents

Abstract

The invention relates to computing and is intended to investigate random processes. The purpose of the invention is to expand the dynamic range and increase speed. The device contains a generator of 1 clock pulses, an analog-to-digital converter 2, an element OR 3, elements AND 4, frequency dividers 5 and counters of 6 pulses. The device performs non-linear scaling of the histogram and parallel calculation of the values of the distribution function. 1 il. them . with

Description

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The invention relates to computing and is intended to investigate random processes.

 The aim of the invention is to expand the dynamic range of the values of the process under study and the probability distribution function and increase the speed,

The drawing shows a diagram of the proposed device.

I The device contains a generator of 1 clock pulses, analog-to-digital converter 2, elements OR 3 elements AND 4 frequency dividers 5, sweepers 6 pulses,

; The device operates as follows:

; Obtaining a sample of instantaneous process values starts after KJaK generator 1 starts a start pulse, which also resets counter 6, Pulses, perspiration from generator 1, starts digital-to-digital converter 2, the second one performs on its outputs digital representation of the sample values of the process under study, the sample size is set by a counter 6,19 overflow signal which is used to stop the generator 1. The number characterizing the volume of output: orcs corresponds to the value chosen full-time integral distribution function l: eni equal to one. Elements 4 and the conversion time of the process under study by the analog-digital converter are closed, providing for this time the supply of a zero signal to the divider 5.2-5. "After the conversion is completed, the elements 4 and 4 are opened to all the dividers 5.2-5, p, which are connected to one-by-one analog-to-digital converter outputs, the values of which are less than the measured value

Boron value, enters I.1. pulse,

As a result, as the sample values of the process under study arrive in counters 6.2–6, p with weights, and dividers 5.2–5, p accumulate, the number of pulses corresponding to counter 6, i number (1) of the process, is satisfied. Uj (t) 2,

Upon completion of the sampling cycle (determined by filling the counter

6с1) readings of counters 6.1-6. P, normalized to readings of counter 6.1 (taking into account the division factors of the number of pulses by dividers 5.1–5, p), give a non-linear scale histogram of a sample integral distribution of probabilities of values of a random process U (t), i. Nonlinear scaling makes it possible to effectively investigate distribution functions with long tails — with a large range of variations in the amplitudes of the process and with a large probability range of interest. grapical distributions.

Claims (1)

Invention Formula 0 5 0 five 0 five 0 five Device for determining the distribution function of random processes containing analog-to-digital. converter, information input. which is the information input of the device, clock generator, n elements AND (where n is the number of histogram intervals,, 2, 3 ,,,,) ,. n pulse counters, and the output of the clock generator is connected to the start input of the analog-to-digital converter, about t - l. Understand that in order to broaden the dynamic range and increase speed, n + 1 frequency dividers, (n + 1) -and a pulse counter, n elements OR, are additionally introduced into it, and the jth input (,,,,, n -i + 1) i-th (i 1j, “,, n) element OR is connected to (j + i-1) -M bit output of the analog-digital converter, OUTPUT i-ro element OR is connected to the first input i The -ro element And, the second input of which is connected to the input of the first frequency divider and the output of the conversion end of the analog-digital converter,. the output of the i-ro element I is connected to the input of the (i + 1) -ro divider, frequency, the output of the i-ro frequency divider is connected to the counting input of the i-ro pulse counter, the input of the installation in O of which is connected to the input of the clock generator, and The start input of the device, the overflow output of the first counter is connected to the stop input of the clock generator.