Adaptive transfer function estimating method and estimating devi

Details Adaptive transfer function estimating method and estimating devi Adaptive transfer function estimating method and estimating devi

1994-07-21

1997-02-11

Downs, Robert W.

Boots, shoes, and leggings

364553, 364578, 36472417, G06F 1710

Patent

active

056027656

ABSTRACT:
In an adaptive estimation of an acoustic transfer function of an unknown system, a forward linear prediction coefficient vector a(k) of an input signal x(k), the sum of forward a posteriori prediction-error squares F(k), a backward linear prediction coefficient vector b(k) of the input signal x(k) and the sum of backward a posteriori prediction-error squares B(k) are computed. Letting a step size and a pre-filter deriving coefficient vector be represented by .mu. and f(k), respectively, a pre-filter coefficient vector g(k) is calculated by a recursion formula for the pre-filter coefficient vector g(h), which is composed of the following first and second equations: ##EQU1##

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patent: 4882526 (1989-11-01), Iino et al.
patent: 5117401 (1992-05-01), Feintuch
patent: 5187692 (1993-02-01), Haneda et al.

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