SU703836A1 - Device for evaluating correlation interval - Google Patents

Description

(54) DEVICE FOR ASSESSING UNTILEDVILE CORRELATION

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i.Vi adjustable filter 3 with transfer function W2 ((l Tr) subtraction unit 4, multiplication unit 5, replacement units b, block 7. nslipametre adjustment, quad 8, functional converter 9 with conversion function H (T) 2T. Device It works the following way, When ONE enters a centrifuged aeration of a random process x (t), the unit 7 for adjusting the parameter | emetjpa changes the parameter T of the filters 2, 3 and the functional converter 9 jjo resetting the output signal y (t) of the averaging unit 6 first channel. At the same time, the functional conversion The signal is set by the signal z (t), taken as an approximate estimate - & correlation interval-g gtr eoag,) - kF of the process under study, Signal 2 (in the steady state described by the following expression: -, -f t. g 2T AL x "sh Jii (t:, T) x (-tt) dc. (I)" -jV h -, where Hz H is normalized by the course of work, centered, the realization of the subject case {-ir, T-) r of the tea process- x {t), -H. - “HGS - pulse characteristic of an adjustable filter 2. - -,, -, Menyoestami operators of mathematical expectation and integration with,,, - given that x (i.)) I, (.- fc-r Jp (t;), j expression (1 1 / bzkno write in The following i-i WeM saw 4b "S A -g / Y1 - 1 i, (g / Thus, for any concrete type of the NKF, you study the Möhf process 45 DSS-) signal g is a function of the parameter T, which, as indicated, is higher , is determined from the condition that the set value of the output signal ay (t) of the averaging block is 50, is equal to zero, .., I Taking into account that, (. pulse characteristic 1 and 6 of the filters 2 and 3, you can GET signals "5-g / H -Jre j) (T) (r) (3) rf -n JBeara4H, Ha signal z does not exceed velizdgny quadratic correlation interval tsiiTts gr StTsSS: investigated 65

Claims (1)

703836 processes x (t), since, according to the Cauchy-Bunkovsky-MvarTs inequality, I 00 00 and reaches its maximum, i.e. is closest to the value of the Su correlation interval, when setting the parameter T chosen in accordance with condition (3). A comparative analysis of the accuracy of the prototype and the described device showed that the latter provides an estimate of the correlation interval with a Lower error for any type (t;) and we will investigate & e process. The table shows the error values (%) of the estimated correlation intervals of the proposed device (c) and ((fj) for some of the most frequently encountered CFs. Thus, the proposed device allows I to estimate the quadratic square of the irrigation interval with a large Essence than the prototype device, does not impose any restrictions on the distribution law of the process under investigation. The invention’s formula for estimating the correlation interval containing the normalization band whose input is the input of the Device and you the stroke is connected to the first inputs of the first and second blocks y and the input of the first adjustable filter whose output is connected to the second input of the second multiplication unit and the input of the second adjustable filter whose output is connected to the first input of the subtractor whose output is connected to the second input riepBoixj multiplication unit, the output of which is through the first averaging unit. Connected to the input of the adjustment unit. parameter, the output of which is connected to the control inputs of the peryjOtSyejJtHX filters and to the first input of the function converter, while the output of the second multiplication unit is yen. with the input of the second block averaged-. e no, of that, with the purpose of demonstrating accuracy, and ycTiJori o quadruple entered, the input kofbEioto I is connected, with the output iitgipofO. BLK, a usa, and the output is connected fe - / g to the input of the functional P | 5e6 gage,. wherein the output of the first adjustable filter is connected to the second input of the subtractor, Information sources. Considered in the examination ; 1. Volkov I.I., Motov V.V. The method of estimating the interval of correction of portal; random process. Automatics and Telemelyayyka, 4, 1974, P.192193. ; ; ;. . 2 USSR author's reference 522507, cl. G 06 G 17/19. 1975.