Casper folks, When using a PFB/FFT combination, I get the static picture in figure 3 of https://casper.berkeley.edu/wiki/The_Polyphase_Filter_Bank_Technique
So what happens next? Do you slide along N samples or M*N samples, or do you just slide one sample, and get one sample out the other end? I want to make correlation products from the PFB/FFT of 19 antennae. I think I fill up a buffer with N complex numbers for each of the 19 channels, and do the products in pipeline while the next buffer is filling. I think this is equivalent to sliding the M*N tap windows along the string of samples by N or Z^-N. Has to be a slide by N doesn't it? The project is an FX correlator for a 19 (x2 polarizations) = 38 channels on a virtex-6 for low and medium bandwidth. 0.4 MHz and 20 MHz, 2.5 MSPS and 50 MSPS respectively, using the 64ADC12. I think I can do it for the 0.4 MHz case. David
