Fractional step correlator

Details Fractional step correlator Fractional step correlator

1986-04-21

1988-08-02

Malzahn, David H.

Boots, shoes, and leggings

G06F 15336

Patent

active

047617527

ABSTRACT:
A circuit for determining the cross-correlation function between two digitally sampled signals comprises a plurality of fractional step delay (FSD) digital interpolation filters which estimate the value of one of said input signals at intervals between said samples and a plurality of correlation circuits each of which determines the correlation between the first signal and the output of one of said interpolation filters.

REFERENCES:
patent: 4283767 (1981-08-01), Rountree
patent: 4460890 (1984-07-01), Busby
patent: 4562312 (1985-12-01), Duttweiler
patent: 4604720 (1986-08-01), Stikvoort

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