Auto-correlation filter

Details Auto-correlation filter Auto-correlation filter

1985-10-08

1988-08-23

Harkcom, Gary V.

Boots, shoes, and leggings

364728, G06F 738, G01R 2316

Patent

active

047665637

ABSTRACT:
A digital filter for obtaining the power of a filtered signal passing through a particular frequency band for each frame (short time division) includes an auto-correlation circuit for calculating the auto-correlation function of the input signal, and a sum of products calculator for obtaining the power of the signal by multiplying a linear coefficient with the auto-correlation function for the frame and summing the products together to get the power of the filtered signal.

REFERENCES:
patent: 4158234 (1979-06-01), Grandchamp
patent: 4404645 (1983-09-01), Elings et al.
IEEE Transactions On Industrial Electronics, vol. IE-29, No. 1, Feb. 1982, pp. 73-82, IEEE, New York, U.S.; Ganesan et al., "A Real-Time Digital Signal Analyzer Correlator Averager Power Spectral Density Analyzer".

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