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Altera_Forum
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14 years ago

FFT Frequency Range

I am using the 50MHz internal clock of the Stratix III to collect samples of a chirp signal operating at 30kHz to 80kHz. I read in one of the forums that the FFT MegaCore output frequencies are 0~Fs...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Before you make changes you should know that with fft of 8192 resolution at speed of 50M you get each bin covering 6.104Khz i.e. about 8 bins will cover your signal (30~80KHz) on either side of dc. May be this enough