| 锁相环路工作原理 |
| |
| 引用本文： | 郭宗光,杨光明. 锁相环路工作原理[J]. 大庆师范学院学报, 2007, 27(5): 33-38 |
| |
| 作者姓名： | 郭宗光 杨光明 |
| |
| 作者单位： | 1. 大庆师范学院,物理与电气信息工程系,黑龙江,大庆,16371
2. 鸿大监理资询有限公司,黑龙江,哈尔滨,150001 |
| |
| 摘 要： | 锁相环路PLL是一个能够跟踪输入信号位相变化,以消除频率误差为目的的闭环自动控制系统,锁相环路PLL主要由鉴相器PD、环路滤波器LF和压控振荡器VCO组成,工作原理主要是频率牵引和位相锁定。PLL在无线电技术的许多领域,如调制与解调、频率合成、数字同步系统等方面得到了广泛的应用,已经成为现代模拟与数字通信系统中不可缺少的基本部件。
|
| 关 键 词： | 锁相环 鉴相器 压控振荡器 环路滤波器 |
| 文章编号： | 1006-2165（2007）05-0033-06 |
| 收稿时间： | 2006-11-25 |
| 修稿时间： | 2006-11-25 |
Phase- locked Loop Principle |
| |
| GUO Zong-guang,YANG Guang-ming. Phase- locked Loop Principle[J]. Journal of Daqing Normal University, 2007, 27(5): 33-38 |
| |
| Authors: | GUO Zong-guang YANG Guang-ming |
| |
| Affiliation: | 1. Department of Physics and Electricity Information Engineering, Daqing Normal University, Daqing163712, China ;2. In Speefion and Comtrol Consulting Cormpary of Hong Da, Haerbin 150001 China |
| |
| Abstract: | A phase-locked loop is able to track the input signal phase changes to eliminate frequency error for the purpose of closed-loop control system.It mainly comprises the phase-locked loop phase detector PD,loop filter and voltage-controlled oscillator component.The main principle of traction is the frequency and phase lock.PLL radio technology in many fields,such as modulation and demodulation,frequency synthesis,and other aspects of digital synchronization system has been used widely and has become an indispensable basic component in modern analog and digital communication system. |
| |
| Keywords: | PLL PD VCO loop filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
