| 锁相环技术在频率跟踪中的应用研究 |
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| 引用本文： | 寇玉民,苏秀丽,黄娜.锁相环技术在频率跟踪中的应用研究[J].微计算机信息,2010(8). |
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| 作者姓名： | 寇玉民 苏秀丽 黄娜 |
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| 作者单位： | 北京联合大学自动化学院; |
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| 摘 要： | 本文介绍锁相环及其频率跟踪的基本原理,给出二阶锁相环和四阶锁相环的设计依据。在此基础上,对四阶锁相环实现频率跟踪的转换时间进行了仿真,就如何减小频率跟踪的转换时间提供了可行方法。通过对锁相环的分析和仿真,达到优化设计频率跟踪方案的目的。
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| 关 键 词： | 锁相环 环路滤波器 压控振荡器 鉴相器 频率跟踪 |
Application Research of Phase Lock Loop Techniques in Frequency Tracking |
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| KOU Yu-min SU Xiu-li HUANG Na.Application Research of Phase Lock Loop Techniques in Frequency Tracking[J].Control & Automation,2010(8). |
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| Authors: | KOU Yu-min SU Xiu-li HUANG Na |
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| Affiliation: | KOU Yu-min SU Xiu-li HUANG Na(Beijing Union University of Automation College,Beijing 100101,China) |
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| Abstract: | This paper gives an introduction to principles of phase lock loop and its frequency tracking techniques and also highlights the design foundation of two-order and four-order phase lock loop(PLL).On this basis, this research emulates frequency tracking transfer time of four-order PLL and, thus, proposes a feasible method to shorten transfer time.It is expected that, through the analysis and emulation of PLL, appropriate frequency tracking plan will come forth. |
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| Keywords: | phase lock loop loop Filter voltage controlled oscillator phase detector frequency tracking |
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