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Combining the advantages of Chan algorithm and Taylor series expansion method, the article has proposed an
improved localization algorithm in the LTE positioning system. The algorithm eliminates much deviation of the
positioning results in Chan algorithm, offers the optimized result as the initial value of Taylor series expansion method,
then get the weighted sum of the positioning of the results of the two kinds of algorithm, finally put the final result as the
location of the mobile station coordinates. Experimental results show that the proposed algorithm can effectively improve
the positioning precision in the noise environment.