Accession Number : AD0671956

Title :   AN ANALOG COMPUTER ADAPTOR UNIT FOR DETERMINING THE AUTOCORRELATION AND CROSSCORRELATION FUNCTIONS (PRISTAVKA K ELEKTRONNYM MODELYAM DLYA OPREDELENIYA AVTOKORRELYATSIONNYKH I VZAIMOKORRELYATSIONNYKH FUNKTSII),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kipshidze,Z. Sh.

Report Date : 16 NOV 1967

Pagination or Media Count : 21

Abstract : An adaptor unit is described for a special purpose analog computer for calculating the auto- and the cross correlation functions of random input signals. It contains a calibrating cathode follower, three tube-capacitor memory cells, a monostable multivibrator, and a pulse shaper circuit. The correlator multiplier and integrator blocks are not part of the adaptor unit. The cathode follower is used for checking the linearity of the memory cells. The monostable multivibrator delay time may be varied from 5 to 550msec in 5msec steps. The correlator unit may accept input signals which are bandlimited to 800cps. Its minimum and maximum correlation times are 5msec and 0.55sec, respectively. It operates in the discrete mode utilizing the signal-sampling technique. The error analysis for both the auto- and the crosscorrelation mode of operation is given. The errors depend on the number of samples, duration between samples, and the total integration time. (Author)

Descriptors :   (*ANALOG COMPUTERS, CONTROL SYSTEMS), COMPUTERS, AUTOMATA, CORRELATORS, STATISTICAL FUNCTIONS, MEMORY DEVICES, ELECTRICAL NETWORKS, DIAGRAMS, CATHODE FOLLOWERS, RELAXATION OSCILLATORS, CORRELATION TECHNIQUES, BANDWIDTH, ERRORS, USSR

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE