The algorithm is presented will be simpler than algorithm 1. However, compared to the original algorithm, improved joint eviction algorithms require certain conditions of D to the algorithm may converge so called DRMP algorithm (D-RIP Matching Pursuit). Suppose D is finite, and D comply with the RIP properties (Restricted isometry property) [7]. More specifically, D satisfy RIP if there exists a constant satisfying for every vector α mainly in k. When D is the orthogonal matrix, and alternative algorithms would be equivalent to the original algorithm.
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