• 锁频环 - 引用次数：4

  In the scheme, A 2D capture method was applied to capture both the Doppler frequency and Doppler variety rate of downlink signal in parallel mood. A 2-rank FLL associate with 3-rank PLL mode to track carrier is presented.

  采用二维捕获方案,并行捕获下行信号的多普勒频率和多普勒频率变化率;利用二阶锁频环和三阶锁相环联合工作方式进行载波跟踪。

  参考来源 - 深空通信中微弱信号接收检测方法研究

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