On Wed, Aug 11, 2004 at 03:58:40PM +0100, Steve Harris wrote: > In the meantime I'l try it with vanilla raised cosines.
I don't think this will work. There's a condition on the window shape: if you add up all the time-shifted overlapping windows the result must be a constant, otherwise you introduce AM. If you do the raised cosine twice, this condition is not satisfied. The 8x overlap will mitigate the effect, but I don't think is usable. The nice thing about SRRC is that if you do it twice, the result is a raised cosine, and that will combine perfectly with the next an previous ones if they are half an FFT length apart. So any 2n overlap will work. -- FA
