AN ANALOG COMPUTER ADAPTOR UNIT FOR DETERMINING THE AUTOCORRELATION AND CROSSCORRELATION FUNCTIONS (PRISTAVKA K ELEKTRONNYM MODELYAM DLYA OPREDELENIYA AVTOKORRELYATSIONNYKH I VZAIMOKORRELYATSIONNYKH FUNKTSII),
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 16, 1967
- Accession Number
- AD0671956
Entities
People
- Z. Sh. Kipshidze
Organizations
- National Air and Space Intelligence Center