SU588550A1

SU588550A1 - Random pulse stream generator

Info

Publication number: SU588550A1
Application number: SU762358820A
Authority: SU
Inventors: Валентин Михайлович Глушань; Виктор Иванович Саплин
Original assignee: Таганрогский радиотехнический институт им. В.Д.Калмыкова
Priority date: 1976-05-10
Filing date: 1976-05-10
Publication date: 1978-01-15

Description

1one

Изобретение относитс к области вычислительной техники и может быть использовано при моделировании случайных процессов.The invention relates to the field of computing and can be used in the simulation of random processes.

Известен генератор случайных импульсных потоков, содержащий набор источников случайных импульсов, матрицу, состо щую из элементов И и ИЛИ и коммутационных вилок , генератор тактовых импульсов, сдвигающий регистр, элемент ИЛИ. Выход каждого генератора случайных импульсов соединен посредством коммутационных вилок со входами соответствующего горизонтального р да элементов И. Каждый выход сдвигающего регистра соединен со входами соответствующего столбца элементов И, выходы которых объединены элементом ИЛИ. Выходы всех элементов ИЛИ матрицы соединены со входами выходного элемента ИЛИ, выход которого соединен с щнной сброса регистра. Это устройство оказываетс очень громоздким при его практической реализации, так как дл изменени закона распределени интервалов используетс набор генераторов случайных импульсов, матрица, состо ща из большого количества элементов И и ИЛИ. Кроме того, такое устройство позвол ет только измен ть законы распределени интервалов, а точнее параметр А пуассоновского потока. Вопрос же получени любого заданного закона распределени остаетс довольно проблематичным,A known generator of random pulse flows, containing a set of sources of random pulses, a matrix consisting of AND and OR elements and switching forks, a clock pulse generator, a shift register, and OR element. The output of each random pulse generator is connected via switching forks to the inputs of the corresponding horizontal row of elements I. Each output of the shift register is connected to the inputs of the corresponding column of AND elements, the outputs of which are combined by the OR element. The outputs of all the OR elements of the matrix are connected to the inputs of the output element OR, the output of which is connected to a reset register. This device is very cumbersome in its practical implementation, since a set of random pulse generators, a matrix consisting of a large number of AND and OR elements, is used to change the law of distribution of intervals. In addition, such a device only allows to change the distribution laws of the intervals, more precisely, the parameter A of the Poisson flow. The question of obtaining any given distribution law remains quite problematic,

так как принцип работы з строиства основан на суммировании в определенном пор дке нескольких пуассоновских потоков с различными интенсивност ми, а как известно, в этом случае поток остаетс пуассоновским 1.Since the principle of operation of the system is based on summing up in a certain order several Poisson flows with different intensities, and as is known, in this case the flow remains Poisson.

Известен генератор случайных имнульсных потоков, содержащий генератор пуассоновского потока импульсов, веро тностный /, /С-нолюсник, набор элементов И, блокиA known generator of random pulsations, comprising a generator of a Poisson pulse flow, a probability /, / C-terminal, a set of elements And, blocks

прореживани , элемент ИЛИ. Выход генератора пуассоновского потока соединен с первыми входами элементов И, второй вход каждого из которых соединен с соответствующим выходом веро тностного /, /С-полюсника. Выходы всех элементов И соединены с соответствующими входами элемента ИЛИ через блоки прореживани . Выход элемента ИЛИ соединен обратной св зью с веро тностным /, /Сполюсником . Этому устройству присущи такие недостатки, как больша погрешность при воспроизведении законов распределени с ограниченным интервалом (например равномерного и т. д.) и громоздкость конструкции за счет использовани большого количества счетчика 2.thinning, element OR. The generator output of the Poisson flow is connected to the first inputs of the elements And, the second input of each of which is connected to the corresponding output of the probability /, / C-pole. The outputs of all elements AND are connected to the corresponding inputs of the element OR through decimation blocks. The output of the OR element is feedback-connected to a probabilistic /, / terminal. This device has such disadvantages as a large error in reproducing the laws of distribution with a limited interval (e.g., uniform, etc.) and the cumbersome structure due to the use of a large number of counter 2.

Наиболее близким техническим решением к данному изобретению вл етс генератор случайных импульсных потоков, содержащий счетчик, на счетный вход которого нодаетс The closest technical solution to this invention is a random pulse flow generator containing a counter, on the counting input of which is supplied

Claims

Poissopic flow of pulses, and the bit outputs through the decoder are connected to the first group of inputs of the And block, respectively, the second group of inputs of which are connected to the outputs of the probable /, L-pole, respectively, and the outputs through the OR element to the output of the generator and to the inputs "reset a counter and a probable I, / -Pole 3. The disadvantage of the known generator is the lack of tracking the length of the time intervals being formed, which reduces its accuracy. The aim of the invention is to improve the accuracy of the generator. For this, the proposed generator contains a source of clock pulses and an additional counter, the input “reset of which is connected to the output of the OR element, the counting input to the output of the source of clock pulses, and the output to the lth input of the OR element. The drawing shows a block diagram of the generator. The generator contains a source of Poisson pulse flow 1, counter 2, additional counter 3, decoder 4, block of elements AND 5-0-5- / е, probability /, / ((zero point 6, source of clock pulses 7 and element OR 8. Output source 1 is connected to the input of counter 2, the outputs of which are connected to the inputs of the decoder 4, and the outputs of the latter are connected to the first inputs of AND 5-0-bk elements, to the second inputs of each of which the corresponding input of the probability / L terminal 6 is connected. clock source 7 is connected to the input of the counter 3 , and the output of the latter is connected to one of the inputs of the element OR 8, to the other inputs of which are connected the outputs of the elements AND 5-0-5. The output of the element OR 8 is feedback-connected to the probabilistic I, L-terminal 6 and counters 2, 3 and is at the same time output 9 of the entire device. The input 10 of the probabilistic / D-terminal 6 serves to set the desired excitation distribution law of its output tires. The generator works as follows. When turned on with probability RJ. excites the CP output bus of a probability I, / C pole pole. Accordingly, the / Cth element I will be opened. At the moment the source 1 arrives at the counter 2 / Cth random pulse at K.-OU, the output of the decoder 4 also receives a pulse that through the open / C-th element I 5 and the element OR 8 will pass to the output 9. On the feedback circuit, this impulse acts on the input of the probable /, / (- pole 6 and on the reset buses of both counters 2 and 3. As a result, one of the output buses will again be excited I, / C-polar poles, and counters 2 and 3 embraced the hardware. Then the process will start forming a new random interval. If during time T (where T lg is the maximum possible interval of the reproducible distribution law, and t is the period of the clock pulses generated by the GTI-7 generator) the random pulse does not appear on any of the outputs of the AND 5-0 elements -bk, then the lth clock pulse from source 7 will go to the output of counter 3 and pass through the element ILI 8 to the output of device 9, and the process of forming the next random interval will begin again. The use of a generator makes it possible to increase the reproducibility of the distribution laws with a limited interval of up to 100-150% and eliminate the need to develop separate devices for the reproduction of pulsed streams with a limited distribution interval. The invention The random pulse generator contains a counter, the counting input of which is connected to the source of the Poisson pulse stream, and the bit outputs through the decoder are connected to the first group of inputs of the block of elements And, respectively, the second group of inputs of which are connected to the outputs of the probability /, L- respectively, and the outputs through the OR element are connected to the output of the generator and to the inputs "reset of the counter and probability 1, / C-pole, characterized in that, in order to improve the accuracy of the generator, it contains a source of clock pulses and an additional counter, the input “of which is connected to the output of the OR element, the counting input to the output of the clock source, and the output to the lth input of the OR element. Sources of information taken into account during the examination 1. USSR author's certificate №308431, cl. G 06F 15/36, 1969.

2. USSR author's certificate No. 504196, cl. G 06F 1/02, 1974.

3. USSR author's certificate number 543004, cl. G 06F 1/02, 1975.