The design of code loop is the key point in the ranging system. And the choice of its parameter greatly affect the trace curve.
码跟踪环的设计是伪码测距系统的一个关键环节，其参数的选择对环路跟踪曲线影响很大。
The principle of the decorrelated pseudo range approach is presented. A weighted mean tracking error estimator is designed to estimate the GPS receiver code loop tracking error.
介绍了伪距解除相关法的原理，设计了一种加权平均跟踪误差估计器，用以估计GPS接收机码环跟踪误差。
Finally, code loop and carrier loop are coupled together to track GPS signal in close loop, and analyze of different performances on track loop under different signal intensity is given.
最后将码跟踪环与载波跟踪环路耦合对采集的GPS信号闭环跟踪，并对不同信号强度下的跟踪结果进行对比分析。
Finally, code loop and carrier loop are coupled together to track GPS signal in close loop, and analyze of different performances on track loop under different signal intensity is given.
最后将码跟踪环与载波跟踪环路耦合对采集的GPS信号闭环跟踪，并对不同信号强度下的跟踪结果进行对比分析。
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