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view dsp/spec2fir.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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function R=spec2fir(A)
% SPEC2FIR: convert magnitude spectra to FIR filter coefficients
%
% spec2fir :: [[M,L]] -> [[2*(M-1),L]].

n=size(A,1);
S=[A; conj(A(n-1:-1:2,:))];
R=fftshift(real(ifft(S)),1);	% get filter coefficients