| VSB解调器中的载波相位跟踪环 |
| |
| 引用本文： | 张朝阳,仇佩亮.VSB解调器中的载波相位跟踪环[J].电路与系统学报,1998,3(3):45-50. |
| |
| 作者姓名： | 张朝阳 仇佩亮 |
| |
| 作者单位： | 浙江大学信息与智能系统研究所 |
| |
| 摘 要： | 本文提出了一种专门用于数字ＶＳＢ解调的载波相位跟踪环，它实际上包括两个可视相互独立的子环，其一用于相位跟踪，另一用于幅度抖动补偿，在噪声和非噪声环境下，该环路均具有较好的性能，文中对此进行了理论分析和计算机仿真，结果表明，在ＨＤＴＶ地面传输系统约１５ｄｂ的信噪比门限下，该环路仍能可靠地工作。
|
| 关 键 词： | 载波相位跟踪环 VSB解调器 HDTV |
Carrier Phase Tracking Loop Used in VSB Demodulator |
| |
| Zhang Zhaoyang,Qiu Peiliang,Wang Kuang.Carrier Phase Tracking Loop Used in VSB Demodulator[J].Journal of Circuits and Systems,1998,3(3):45-50. |
| |
| Authors: | Zhang Zhaoyang Qiu Peiliang Wang Kuang |
| |
| Abstract: | This paper proposes a carrier phase tracking loop dedicated for VSB demodulation.It actually contains two mutually independent loops,one for phasing tracking and the other for amplitude compensating.It is shown that these loops have good performance under either noisy or non-noisy environment.The theoretical approximation is confirmed by simulation results which shows that at a SNR threshold of 15db in digital HDTV terrenstrial transmission system ,the loops can still work properly. |
| |
| Keywords: | Carrier phase tracking loop VSB demodulator HDTV |
| 本文献已被 CNKI 维普 等数据库收录！ |
