Simulate polyphase fir filter


        The polyphase filter bank (pfb)  uses a 4 times overlap fir filter before the fft. The filter is 8192*4 points long. 4 points spaced by 8192 are added together to give the 8k output. The data is then shifted by 8k and the process is repeated.
    The response of sine waves and noise were checked using the 8192 length hamming filter. Sine waves and noise were generated on the computer and passed through the filter.
    The plots show the pfb response to dc, sine waves, and noise (.ps) (.pdf):
processing: x101/070926/

<- page up