本文介绍了一种新型频率相位追踪锁定环路（FPTLL）的设计。

A novel Frequency and Phase Tracking Locked Loop (FPTLL) is proposed in this paper.

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锁相环路是一种能实现相位自动锁定的控制系统，主要用于频率合成及跟踪解调系统。

The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.

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本文就被动型原子钟的环路设计讨论了原子谐振器频率准确度和稳定向锁定晶振的传递问题。

The loop design of the passive atomic clock is discussed to accomplish the transfer of the frequency accuracy and stability from the atomic resonance to the locked oscillator.

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