SU729590A1

SU729590A1 - Statistical analyzer

Info

Publication number: SU729590A1
Application number: SU782613534A
Authority: SU
Inventors: Анатолий Григорьевич Кан; Ирина Григорьевна Кан; Михаил Аркадьевич Раков; Юрий Сергеевич Спиридонов
Original assignee: Физико-Механический Институт Ан Украинской Сср; Предприятие П/Я Р-6237
Priority date: 1978-05-10
Filing date: 1978-05-10
Publication date: 1980-04-25

Description

1one

Изобретение относитс к автоматике и цифровой вычислительной технике и может использоватьс дл статистического анализа случайных процессов.The invention relates to automation and digital computing and can be used for statistical analysis of random processes.

Известен статистический анализатор,5 позвол ющий определить функцию плотности веро тности исследуемох-б прб-цесса 1. Однако недостатком этого устройства вл етс невозможность, измерени с его помощью одномерных 10 моментов случайных процессов.The statistical analyzer 5 is known, which makes it possible to determine the probability density function of probabilistic-bp-process 1. However, the disadvantage of this device is the impossibility of measuring with it one-dimensional 10 random moments of random processes.

Наиболее близко к предлагаемому изобретению по технической сущности устройство, определ ющее функцию плотности веро тности случайных процессов 5 и содержащее амплитудный селектор, блок формировани опорных напр жений, генератор импульсов, элемент И, счетчик-накопитель , счетчик-делитель, переключатель 2 .20Closest to the invention, according to the technical essence, is a device that determines the probability density function of random processes 5 and contains an amplitude selector, a unit of formation of reference voltages, a pulse generator, an element I, a counter-drive, a counter-divider, a switch 2 .20

Недостатком этого устройства вл етс невозможность с его помощью определить моменты случайных процессов.A disadvantage of this device is the impossibility of using it to determine moments of random processes.

Цель изобретени - расширение функциональных возможностей анализатора 25 за счет определени моментов случайных процессов.The purpose of the invention is to expand the functionality of the analyzer 25 by defining moments of random processes.

Это достигаетс тем, что статистический анализатор, содержащий переключатель , счетчик-накопитель, амплитуд-30This is achieved by the fact that the statistical analyzer, containing a switch, a counter-drive, amplitudes -30

ный селектор, первый вход которого вл етс входом анализатора, а второй и третий входы соединены с первым и вторым выходами блока формировани опорных напр жений, вход которого соединен с выходом счетчика-делител , вход которого подключен к выходу генератора импульсов и первому входу элемента И, второй вход которого соединен с выходом амплитудного селектора , а выход подключен к первому входу счетчика-накопител , содержит преобразователь число-веро тность, первый вход которого соединен с вторым выходом блока формировани опорных напр жений , второй вход.преобразовател число-веро тность соединен с выходом генератора импульсов, а выход - подключен к третьему входу элемента И, при этом выход счетчика-делител через переключатель соединен с вторым входом счетчика-накопител .the first selector is the input of the analyzer, and the second and third inputs are connected to the first and second outputs of the reference voltage shaping unit, the input of which is connected to the output of the splitter counter, the input of which is connected to the output of the pulse generator and the first input of the And element, the second input of which is connected to the output of the amplitude selector, and the output connected to the first input of the accumulator counter, contains a number-probability converter, the first input of which is connected to the second output of the unit forming the reference signals straight zheny second vhod.preobrazovatel number-likelihood connected to the output of the pulse generator, and the output - is connected to the third input of the AND gate, the output of the counter-divider via a switch coupled to the second input of the accumulator-counter.

На чертеже дана схема предлагаемого анализатора.The drawing is a diagram of the proposed analyzer.

Claims

The statistical analyzer contains an amplitude selector 1, the first input of which is the analyzer input, the second and third inputs are connected to the outputs of the reference voltage generation unit 2, the input of which is connected to the output of the counter-divider 3, the input of which is connected to the output of the 4 pulse generator (memory) , the first input of the element is And 5 and the second input of the converter is the n-probability, the first input of which is connected to the second input of the amplitude selector 1, and the output of the converter 6 is connected to the third input of the element 5, the second input One of which is connected to the output of the amplitude selector 1, and the output of the element I 5 is connected to the input of counter accumulator 7, the zero input of which is connected to the output and switching bodies 8, whose input is connected to the output of counter divider 3. The analyzer works as follows. The input random process x (t) is matched by an amplitude selector with the values of the voltages x and (x + dx) generated by block 2. A single signal is produced at the output of the selector 1 only if inequality (t) x + lx is fulfilled. from the output of the generator 4, the element 5 goes to the output of the element 5 and is counted by the drive accumulator 7. In addition, the generator 4 pulses are directly counted by the counter-divider 3. At the moment of the counter-divider 3 overflow, the contents of the drive counter 7 are proportional to The strength of the random process under investigation with a value equal to x. An overflow pulse from the output of the splitter counter 3 zeroes the accumulator counter 7 (switch 8 is set to) and sets in block 2 new reference values of voltages X and X. + д X. So the device works in the mode of measuring the probability density function . In the mode of measuring the moments of a random process, switch C is set to position b, and converter b forms a random binary sequence, the probability of which units are equal to the reference X, raised to the kth power, i.e., x. Erection in the k-th. the degree of random binary signal is performed in block b in the following way. A signal with a probability of occurrence of units equal to x; is delayed relative to the binary sequence with a probability of occurrence of units for a time equal to the time of maximum correlation of signals, and then both sequences are passed through a two-input element And contained in block 6, the output of which forms a sequence with a probability of occurrence of units equal to. Thus, for raising to the kth degree, block 6 contains (K-1) a delay element and (K-1) element I. In such a way, element 5 will multiply the probabilities of the signal under investigation within (x, X + lx) for a probability equal to x. At the moment of overflow of the counter-divider 3, the counter-accumulator 7 will contain the value u) (x) x, where to (x) is a function of the probability density. The overflow pulse from the output of Counter-divider 3 will change the generated reference level x in block 2, but will not null the contents of counter accumulator 7. After this moment, the calculation of the new value of product (x) and its summation with the already known values begin 7. After the measurement for all values of the reference voltage (from) in the meter-accumulator 7g: the obsessed will correspond to 3 (x (x) dx. Thus, the proposed analyzer allows you to measure the moments of random functions, which greatly rubs it Functionality. Invention The statistical analyzer comprises a switch, a counter-drive, an amplitude selector, the first input of which is the input of the analyzer, and the second and third inputs are connected to the first and second outputs of the reference voltage generation unit, the input of which is connected to the output of the counter- the divider, the input of which is connected to the output of the pulse generator and the first input of the element I, the second input of which is connected to the output of the amplitude selector j and the output is connected to the first input of the counter - a accumulator, characterized in that, in order to expand the functionality of the analyzer by determining moments of random processes, it contains a number-probability converter, the first input of which is connected to the second output of the reference voltage shaping unit, the second number-probability converter is connected with the output of the pulse generator, and the output is connected to the third input of the element And, while the output of the divider counter through the switch is connected to the second input of the counter-drive. Sources of information taken into account in the examination 1. The author's certificate of the USSR 407329 cl. G About F 15/36, 1971.

2. USSR author's certificate No. 329527, cl. G 06 F 15/36, 1971.