基于ADS的接收机码元同步算法实现  

Timing Recovery Algorithm in Digital Receivers Based on ADS

作　　者：苏鹏博[1] 董燚 许建华 张超 

机构地区：[1]西安电子科技大学,陕西西安710071 [2]西安新天盟航空科技有限公司,陕西西安710075 [3]电子测试技术国家科技重点实验室,山东青岛266555

出　　处：《宇航计测技术》2010年第3期44-48,共5页Journal of Astronautic Metrology and Measurement

基　　金：国家自然科学基金资助(基金号:10703004)

摘　　要：数字通信系统中,码元同步对于实现信号的准确判决码元和降低系统误码率起着关键作用。介绍了在ADS仿真环境下实现16QAM接收机码元同步算法。采用的定时误差提取算法消除了传统算法在16QAM系统中引起的时钟抖动问题,实现了接收信号和发送信号同步。并对该算法在ADS环境下进行了仿真,仿真结果表明该算法实现了码元同步的功能,并对干扰有较强的抵抗能力。In Digital Telecommunication System,Timing Recovery Algorithm plays an important role in judging signals accurately and reducing the error rate.This paper introduces Timing Recovery algorithm in 16QAM Telecommunication System based on ADS.Timing error detector algorithm is adopted to eliminate clock jitter caused by traditional algorithms in 16QAM System,realizes receiving and transmitting signal synchronously.The results indicate that the algorithm not only realizes Timing recovery but also has good capacity of resisting disturbance.

关 键 词：码元同步 GARDNER算法 ADS 

分 类 号：O177.1[理学—数学]