Blind transversal equaliser

摘要

A digital signal error reduction apparatus tracks and reduces both quickly changing errors and static errors in a digital signal which are caused by time variant multipath distortion, co-channel interference, and other transmission path interferences, including nonlinear distortion. A transversal filter means filters the digital signal. A error detection means calculates an error of the digital signal. A coefficient engine means for receiving the digital signal and the error, extracting the error at one of m times (m is a natural number), and updating a tap coefficient for the transversal filter so that the error is minimum.