📄 fftplot.mht
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Date: Mon, 11 May 2009 19:48:41 +0800
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<BODY><PRE>%FFTPLOT(in)
% This function plots the power spectrum on the input vector.
% The coding was altered slightly from the demo that comes with
% Matlab, but here it is in one easy-to-use file.
function out = fftplot(in)
a = fft(in);
a(1) = [];
b = length(a)/2;
power = abs(a(1:b)).^2;
nyq = 1/2;
freq = (1:b)/b*nyq;
plot(freq,power);
out = 'Done';</PRE></BODY></HTML>
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