说明：  稀疏分量分解。 function [y A]=sparseBSS1(X,L,langda,G,h,delta)
(function [y A]=sparseBSS1(X,L,langda,G,h,delta) ---------------------------------------------------------------- 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 )