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.

采用a trous算法实现静态小波变换(SWT)。尺度函数的生成采用cascade(mask)算法-Á trous algorithm for 1-D stationary wavelet transform.An interesting demo for generating scale function using mask (cascade) algorithm.