Based on the performance of PN code and carrier tracking loop, an optimal loop bandwidth is presented.

在分析伪码和载波跟踪环性能的基础上，给出了跟踪环路的最优带宽。

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The effect of thermal noise and vehicle dynamics on carrier tracking loop are also analyzed, and the optimal bandwidth of carrier tracking loop is obtained.

并以相位跟踪环路为例分析了热噪声及载体动态性对环路的影响，得出了环路设计的最佳带宽。

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