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diff dsp/phasespec.m @ 32:c3b0cd708782

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Imported core dsp tools.
author samer
date Sun, 20 Jan 2013 13:48:47 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dsp/phasespec.m	Sun Jan 20 13:48:47 2013 +0000
@@ -0,0 +1,10 @@
+function S=phasespec(X)
+% PHASESPEC(X): get phase spectra of columns of x
+%
+% phasespec :: [[N,T]->real] -> [[M,T]->complex]] :- M is N/2+1.
+
+m=size(X,1)/2;
+S=fft(X);
+S=S(1:m+1,:)./abs(S(1:m+1,:)); % get complex phases of components.
+% first and last rows should be ones
+