OMP算法寻找信号的稀疏表示寻找信号的稀疏表示

简单实用的OMP算法,寻找信号的稀疏表示。 % Sparse coding of a group of signals based on a given % dictionary and specified number of atoms to use. % input arguments: D - the dictionary % X - the signals to represent % L - the maximal number of coefficient for representation %