SAMPLED DATA SUBSAMPLING APPARATUS

摘要

RCA 84,984 An antialias filtering and subsampling system incorporates a compound accumulator including three cascade connected accumulator circuits conditioned to integrate and dump the integrated values of n input samples. The integrated values from the three integrators are scaled, delayed and combined to produce subsampled values of a signal which has been filtered according to the transfer function ¢sin(n.pi.ft)/nsin(.pi.ft)!3.