Apparatus for processing signal using minimum mean square error algorithm

摘要

Multipliers multiply corresponding input signals X1(n)˜Xm(n) by adaptive weights W1(n)˜Wm(n). An adder adds the output of the multipliers. The error function generating unit computes an error function e(n) indicating the difference between a sum Y(n) and a reference signal r(n). The adaptive weight update unit 4 computes the next adaptive weights W1(n+1)˜Wm(n+1) based on the error function e(n). The error function generating unit 3 includes a correction factor generation unit for generating correction factors &agr;(n) and &bgr;(n) based on the adaptive weights W1(n)˜Wm(n), an arithmetic unit for multiplying the sum Y(n) by the correction factor &bgr;(n), an arithmetic unit for multiplying the reference signal r(n) by the correction factor &agr;(n), and a subtracter 14 for computing the difference between output of the arithmetic units.