generate_twiddles.m

来自「TigerSharc TS201 32-bit floating point F」· M 代码 · 共 19 行

%this file computes twiddle factors for an FFT transform:
%W=cos(2*pi*k/N)-j*sin(2*pi*k/N), k=0,1,...,N/2-1

%This signifies that for N points fft, the file with twiddles
%is ['twid',N/2,'.dat'] and contains N/2 values

clear all

for i=1:10
  N(i)=16*2^(i+1);
end


for i=1:10
      number_points=num2str(N(i)/2);
      twiddles(['twiddles/twid',number_points,'.dat'],N(i));
end;