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。

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At last, it's illustrated by the theoretic ranging error curve that the relative ranging error is less than that of the irradiance measurement.

最后，给出了文中算法的理论误差曲线，分析表明该测距误差小于辐照度的测量误差。

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