Distributed compressive sensing sparsity adaptive reestablishment method
A compressed sensing and sparsity technology, applied in baseband systems, digital transmission systems, electrical components, etc., can solve problems such as difficulty in implementation, and achieve the effect of short running time and excellent performance
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[0034] The present invention discloses a distributed compressed sensing sparsity adaptive matching pursuit reconstruction (DCS-ImprovedSparsity Adaptive Matching Pursuit, DCS-IMSAMP) method, which is applied to time-frequency dual-selective OFDM system channel estimation. It contains three main technical problems, one is to transform the channel estimation problem of the dual-selection OFDM system into a distributed compressed sensing problem; the other is to improve the accuracy of the DCS-SAMP reconstruction algorithm; the third is to solve the long running time of the existing algorithm The problem. The implementation of these three parts will be introduced respectively below, and the beneficial effect of this algorithm on improving the channel estimation performance of the dual-selection OFDM system based on adaptive distributed compressed sensing will be illustrated through simulation.
[0035] (1) Distributed DCS channel model based on CE-BEM dual selection OFDM system ...
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