Adaptive filter and a method of preventing divergent behavior of

Details Adaptive filter and a method of preventing divergent behavior of Adaptive filter and a method of preventing divergent behavior of

1991-11-19

1993-11-09

Malzahn, David H.

Boots, shoes, and leggings

G06F 1531

Patent

active

052608964

ABSTRACT:
A method of preventing divergent behavior of a recursively adjusted adaptive filter and an adaptive filter to which the method is applied are disclosed. The adaptive filter is adjusted by alternately carrying out two kinds of corrections during respective correction terms. In the first correction term, each tap gain in the adaptive filter is corrected through a recursive correction algorithm. In the second correction term, a new tap gain is produced by multiplying the current tap gain by a constant which is predetermined so as to suppress divergent tendency in recursively corrected values of each tap gain. Therefore, operations to make recursively corrected values of each tap gain converge and operations to suppress divergent tendencies in the recursively corrected values of each tap gain are executed alternately.

REFERENCES:
patent: 4237554 (1980-12-01), Gitlin et al.
patent: 4243959 (1981-01-01), Duttweiler
patent: 4467441 (1984-08-01), Gritton

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