[問題]FFT 已回收
不太懂快速傅立葉轉換的指令
NFFT = 2^nextpow2(L); % Next power of 2 from length of y
Y = fft(y,NFFT)/L;
f = Fs/2*linspace(0,1,NFFT/2);
有人能幫我解釋嗎?
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