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Discussion Groups | Matlab DSP | Generating FFT coefficients
Technical discussion about Matlab and issues related to Digital Signal Processing.
Generating FFT coefficients - rnjt9 - Apr 22 14:44:00 2003
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hello, i need to generate a generic program in matlab that gives me the numeric values of the real and imaginary parts of the twiddle factors used in FFT. I am designing an FFT processor and i need to store the values of these coefficients in a ROM. I am not very familiar with MATLAB and hence have been facing many problems with my design. Say for calculating a 256-point FFT, N=256; K=N-1; the twidle factor would then be=Cos(2*pi*k/N)-i*sin(2*pi*k/N)... for different values of k and N. I tried generating them ..but i could only plot the whole function ..i need to print the individual values of cos(2*pi*k/N) and sin(2*pi*k/N)..How can i do this? Any help would be grately appreciated. Many thanks, Pavan. |
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