Because of the fading characteristic in troposcatter channel, the mechanism of traditional phase locked loop is difficult to achieve the effect in troposcatter communication.
由于对流层散射信道存在严重的衰落现象，故而传统的锁相环机制在散射通信中往往难以奏效。
This paper gives an analysis of parasitic frequency deviation in the digital phase locked loop, which is one of the important specifications of modern communication systems.
本文分析了数字锁相环路的寄生频偏，它是现代通讯系统中频率合成器的重要指标之一。
A novel all-digital phase locked loop (PLL), applied to the carrier synchronization of communication systems, is designed.
设计了一种用于通信系统载波同步的新数字锁相环。
In phase-coherent communication system, phase-locked loop is always used to yield coherent reference signal.
相位相干通信系统中，通常采用锁相环路来产生相干参考信号。
This paper presents a new type of all digital phase-locked loop(ADPLL)used for extracting a bit-synchronous signal to meet the requirements of the fast phase-locked in burst digital communication.
本文根据突发式数字通信快速锁相要求，提出一种位同步信号提取的新的快速全数字锁相环方案。
This paper presents a new type of all digital phase-locked loop(ADPLL)used for extracting a bit-synchronous signal to meet the requirements of the fast phase-locked in burst digital communication.
本文根据突发式数字通信快速锁相要求，提出一种位同步信号提取的新的快速全数字锁相环方案。
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