Patent ID: 6504868
Filing Date: 2003-01-07
Classification: H04L

Abstract:
An adaptive equalizer comprising;a channel estimating means for having a received signal inputted and estimating the impulse response of a channel of said received signal, an adaptive algorithm operating means for adaptively updating the impulse response of the channel estimated by said channel estimating means to a magnitude according to an update quantity control parameter on the basis of an adaptive algorithm, a decoding means for performing a Viterbi decoding process on the basis of said received signal and the impulse response of the channel obtained by said adaptive algorithm operating means, and outputting an equalized data signal of said received signal, a bit error rate estimating means for estimating the bit error rate of the equalized data taken out from said decoding means, and an update quantity control parameter adjusting means for adjusting and supplying said update quantity control parameter to said adaptive algorithm operating means on the basis of the estimated bit error rate value calculated by said bit error rate estimating means.