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- W2393442955 abstract "In order to effectively reduce complexity of the traditional channel estimation algorithm under sparse channel,an improved channel estimation algorithm of orthogonal matching pursuit cancellation based on back propagation network is presented in this paper.First the location of channel nonzero-taps are determined by orthogonal matching pursuit cancellation algorithm,and then by setting the initial weight and threshold value of BP neural network,the estimate of nonzero-taps is further approximated,finally through adaptive adjustments the accuracy of the channel estimation are corrected.By comparing the sparse decomposition of the BP and OMPC,the method presented in this paper solves the problems in the signal sparse decomposition such as heavy calculation and slow convergence speed,and the method also can use channel characteristics of sparse." @default.
- W2393442955 created "2016-06-24" @default.
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- W2393442955 date "2011-01-01" @default.
- W2393442955 modified "2023-09-23" @default.
- W2393442955 title "An Improved Estimation Algorithm of Sparse Channel in BP Network" @default.
- W2393442955 hasPublicationYear "2011" @default.
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