matlab实现的多相滤波器，cic抽取D=5时例子，及级联型的cic的程序。-matlab implementation of the polyphase filter, cic examples taken D = 5 时, and the cascade of cic procedures.

MATLAB建模数字下变频的滤波器组设计，和幅频特性分析（cic级联补偿滤波器，和cic级联补偿滤波器和半带滤波器）-Digital down conversion filter bank design, analysis and amplitude-frequency characteristics of the the cic cascade compensation filter and the cic cascade compensation filter and half-band f