Advanced signal processing filter

Details Advanced signal processing filter Advanced signal processing filter

1994-09-30

2000-03-14

Malzahn, David H.

Boots, shoes, and leggings

367901, G06F 1710

Patent

active

060363517

ABSTRACT:
A filter, and method of the filtering, for increasing the signal to noise tio of relatively small and constant amplitude signals in the presence of relatively large and varying amplitude signals. The filter produces a filtered power level a.sub.z proportional to: ##EQU1## where x.sub.i are power realizations of the signal in a selected frequency bin, and i=1, 2, . . . , N, and z is a non-zero real number not equal to -1, 0, or 1, and is preferably positive. For positive z, because filtered power level a.sub.z depends on a sum of (x.sub.i).sup.-z, sum a.sub.z disproportionately favors smaller, more stable, signals.

REFERENCES:
patent: 4207624 (1980-06-01), Dentino et al.
patent: 5103431 (1992-04-01), Freeman et al.
patent: 5216640 (1993-06-01), Donald et al.

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