In this paper,we use two algorithms to estimate the parameters of the visible light channel model and propose a new algorithm for the defects of the existing algorithms,such as poor tracking performance,poor pilot matching and so on. It will be of the depth of the iterative EM algorithm to find optimal characteristics and SVD algorithm reduced order of integration and the use of low rank representation method to overcome the problems of slow convergence of dense matrix and low rank matrix recovery problem i...
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