摘要：
function [Xk] = dft(xn,N) %computes discrete fourier transform %--------------------------------------------- %[Xk] = dft(xn,N) %Xk = DFT coeff. array over 0<= k<=N-1 %xn = one period of periodic signal over 0<= n<= N-1 % N = Fundamental period of xn % n = [0:1:N-1]; k = [0:1:N-1]; WN = 阅读全文
