Digital adaptive finite impulse response filter with large numbe

Details Digital adaptive finite impulse response filter with large numbe Digital adaptive finite impulse response filter with large numbe

1981-01-13

1983-03-22

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

333166, H03H 1704, H03H 2100, H03H 1502

Patent

active

043777937

ABSTRACT:
A digital adaptive finite impulse response (AFIR) filter having a large number of coefficients is composed of two or more separate filter units. The first filter unit computes response samples h.sub.o -H.sub.n+1 in response to input signal samples to provide a partial estimated response during each sampling period. After the signal samples are fully processed by the first unit, they are transferred to a second filter unit which produces response samples h.sub.n+2 -h.sub.p+1 in response thereto to provide a second partial response. The sum of the two partial responses is computed to provide the total estimated system response. The two independent filter units thus act simultaneously to provide twice as many coefficients as prior art AFIR filters in the same amount of time.

REFERENCES:
patent: 3639848 (1972-02-01), Elliot
patent: 3980873 (1976-09-01), Mattei
patent: 4204177 (1980-05-01), Eggermont
patent: 4283696 (1981-08-01), Goser

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