DVB-T接收机中的CPE均衡技术  

Schemes of the CPE equalization in DVB-T receiver

作　　者：赵小祥[1] 徐元欣[1] 杨剑啸[1] 王匡[1] 

机构地区：[1]浙江大学信息与通信工程研究所,浙江杭州310027

出　　处：《电路与系统学报》2005年第4期7-11,共5页Journal of Circuits and Systems

摘　　要：DVB-T是最近十年全球地面数字电视传输系统使用最广泛的一种标准,本文通过分析相位噪声对DVB-T传输系统的影响,提出了两种适用于该系统且易于硬件实现的CPE(公共相差)均衡方法,并比较了它们的实现复杂度。仿真表明,在多径衰落条件下,两种方法均提高了系统性能。During the present decade, DVB-T has been the most widely-used standard for digital terrestrial television in the world. This paper analyzes phase noise effects on the performance of DVB-T system and presents two methods of the CPE （common phase error） equalization which adapted to the DVB-T system and are easy to be implemented with hardware. Simulation results show that the methods are very effective, especially in fading channels.

关 键 词：数字视频地面广播(DVB—T) 正交频分复用(OFDM) 相位噪声 CPE 

分 类 号：TN92[电子电信—通信与信息系统]