提出了一种具有自动变模控制的快速全数字锁相环。
A fast all digital phase-locked loop with automatic modulus control is presented.
应用MATLAB分析了影响锁相环快速锁定的主要因素，提出了一种具有高精度自动变模控制的快速全数字锁相环。
The primary factor affecting fast phase lock is analyzed by using MATLAB. Then a fast all digital phase locked loop with a high precision automatic modulus control is proposed.
本文叙述了用CD 4046锁相环实现频率自动跟踪的电路结构和工作原理。
This paper describes the electronic structure of which automatic frequency-tracking has been implemented with help of IC model CD4046 and its operating principle.
利用锁相环(LL)窄带跟踪特性，与单片机结合，实现自动闭塞系统移频信号解调。
Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop (PLL) technique and a singe chip microcomputer.
设计了一种基于环形CCO的锁相环自动频率调谐结构来减小频率偏差。
Furthermore, a ring CCO based frequency tuning scheme is proposed to reduce frequency variation.
设计了一种基于环形CCO的锁相环自动频率调谐结构来减小频率偏差。
Furthermore, a ring CCO based frequency tuning scheme is proposed to reduce frequency variation.
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