Introduction - If you have any usage issues, please Google them yourself
function [y A]=sparseBSS1(X,L,langda,G,h,delta)
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2009-04-15 YangZhicong
X: observed signal,each row correspond to a sensor observations
L: the length of FFT (or the length of Hanning window)
langda: adjust the desired angular width
G: discretize the potential field by taking a sample of G points
h: threshold
y: estimated sourses
A: estimated mix matrix