本文提出了一种专门用于数字VSB解调的载波相位跟踪环。

This paper proposes a carrier phase tracking loop dedicated for VSB demodulation.

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由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。

Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.

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针对光伏并网发电系统，基于数字锁相环，研究了一种实现系统并网电流幅值、相位跟踪控制的新方法。

Based on a new digital PLL, a new current tracing control strategy for a grid-connected PV system was proposed to control the amplitude and phase of the inverter current.

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