突发通信中的频偏估计算法研究  

The Research on Carrier Frequency Offset Estimation Algorithms in Burst Communication

作　　者：朱响应[1] 孙锦华[1] 杜栓义[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071

出　　处：《电子科技》2009年第7期16-18,22,共4页Electronic Science and Technology

摘　　要：载波同步技术是解调系统的核心与关键技术。文中分析了基于数据辅助的Kay,Fitz,R&L,近似ML频偏估计算法,并对这几种算法进行了仿真。仿真结果表明,Kay算法的鉴频范围大,Fitz算法和L&R算法估计性能好,近似ML算法性能最优但算法相对复杂。Carrier synchronization is very important in the receiver. In this paper, frequency offset estimation algorithms such as Kay, Fitz, Luise and Reggiannini（L＆R） and the approximate ML estimation algorithm are analyzed and simulated. Simulation results show that the Kay algorithm has a wider estimation range and the Fitz and L＆R algorithms have better performance. The approximate ML estimation algorithm is optimum but comparatively complex.

关 键 词：突发通信 数据辅助 载波同步 频偏估计 

分 类 号：TN92[电子电信—通信与信息系统]