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The multipath effect introduces quite big errors to the traditional DLL‐based code measurement.This paper presents a multipath insensitive delay lock loop(MIDLL).Then the paper analyzes the correlation model under multipath signal and introduces the discrimination function of MIDLL detailedly.Simulation results and analysis show that MIDLL improves the tracking error due to multipaths dramatically,and tracking error is limited to 1m on pseudorange in typical multipath environments.This loop predominantly applies to strong GNSS signals,because it is more sensitive than the typical delay lock loop to thermal noise.