DIGITAL PARTIAL RESPONSE FILTER

摘要

A digital partial response filter is disclosed. The digital partial response filter has particular application in an FM subcarrier (SCA) digital data transmission system wherein digital data is frequency modulated on an F.M. subcarrier. The partial response digital filter includes a digital memory wherein digitized samples of the partial response channel response to a representative input digital data symbol are stored and digital adding means for cumulatively summing the digitized samples in groups so as to produce the partial response channel response to an input digital data stream.