128k Point FFT
Why the 128k point fft should be computed using an FPGA? did you first think about the possibility of using a for example pentium or even a dsp?
If you are going to use a Virtex-II Pro FPGA for doing such a thing, you should make sure that there is no other solution with lower costs. usually there are some better lower cost solutions.
Look! Virtex-II Pro FPGA is some thing really amazing, Gigabit interfaces, powerpc core, lot's logic resource, and OK! the price is not low. are you willing to pay the price? even when lower costs solutions such as industrial motherboards and dsp dev kits are available?
Would you please tell me, your system's sample rate? I want to caculate if a V2P is really needed.
thanks,
mami_hacky.