Method and apparatus for compensating for the truncation error in a filtered signal by adding the error to the positive part of the signal and subtracting the error from the negative part of the signal

摘要

A method and device for compensating the truncation error occurring in a sampled signal during processing in a digital filter. The mean error e. sub.t is calculated for the filter, and before filtering the signal +e. sub.t is added if the signal is positive and -e.sub.t is added if the signal is negative.