| 数字Costas锁相环的改进及应用 |
| |
| 引用本文： | 杨德勇,许林峰,樊丰,朱维乐. 数字Costas锁相环的改进及应用[J]. 电视技术, 2009, 33(Z1) |
| |
| 作者姓名： | 杨德勇 许林峰 樊丰 朱维乐 |
| |
| 作者单位： | 电子科技大学,四川,成都,610054 |
| |
| 摘 要： | 介绍了Costas锁相环的基本原理,然后提出了一种适合电视信号色度副载波恢复的改进数字Costas锁相环的基本原理.并且详细介绍了其积分清零器、相位检测器、数字环路滤波器、NCO等各个基本部件的设计,最后在Matlab上给出了该算法的仿真结果并且做了分析.
|
| 关 键 词： | Costas锁相环 积分清零器 色度副载波恢复 |
Improvement and Application of Digital Costas Phase-locked Loop |
| |
| YANG De-yong,XU Lin-feng,FAN Feng,ZHU Wei-le. Improvement and Application of Digital Costas Phase-locked Loop[J]. Ideo Engineering, 2009, 33(Z1) |
| |
| Authors: | YANG De-yong XU Lin-feng FAN Feng ZHU Wei-le |
| |
| Affiliation: | YANG De-yong,XU Lin-feng,FAN Feng,ZHU Wei-le(University of Electronic Science and Technology of China,Chengdu 610054,China) |
| |
| Abstract: | Firstly the basic principle of Costas phase-locked loop is briefly introduced.Then the basic principle of an improved digital Costas phase-locked loop which is suitable for color TV signal sub-carrier to resume is put forward.And designs of all its basic components which include clear-points,phase detector,digital loop filter and NCO are given.Finally,the algorithm simulation is given and analyzed. |
| |
| Keywords: | Costas phase-locked loop clear-points color subcarrier recovery decode |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
