CoSaMP-and-OMP-for-sparse-recovery

代码说明：

  压缩感知信号恢复算法OMP和CoSaMP算法，常用的算法( x = CoSaMP( A, b, k ) uses the Compressive Sampling Matched Pursuit (CoSaMP) algorithm (see Needell and Tropp s 2008 paper http://arxiv.org/abs/0803.2392 ) to estimate the solution to the equation b = A*x (or b = A*x+ noise ) where there is prior information that x is sparse.z)