孙永磊,杨昕欣

• 1:北京航空航天大学

摘要(Abstract)：

锁相环是一种相位误差自动控制系统,在通信领域有着广泛的应用。通过设计锁相环路,实现对输入信号的频率和相位突变时的跟踪。首先介绍锁相环路的基本原理,然后对一阶和二阶锁相环的动态跟踪特性进行分析,最后采用仿真软件Multisim 13.0设计仿真电路,针对一阶、二阶PLL的输入信号频率和相位突变时的情况进行仿真研究,实际仿真结果与理论分析相吻合。仿真结果表明,设计的锁相环路实现了对输入信号频率和相位突变后的跟踪。

关键词(KeyWords)： 锁相环;频率突变;相位突变;信号跟踪;理论分析;Multisim

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(61371077)~~

作者(Author): 孙永磊,杨昕欣

DOI: 10.16652/j.issn.1004-373x.2018.01.012

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