基于Golay互补序列对的定时同步算法的研究  

Timing Synchronization Algorithm based on Golay Complementary Sequences Pair

作　　者：俞文力 彭虎[1] 鲁普天 韩志会[1] 孔慧芳[2] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院,安徽合肥230009 [2]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《通信技术》2016年第12期1588-1592,共5页Communications Technology

基　　金：国家重大科学仪器设备开发专项项目(No.2013YQ200607;No.2012YQ200224);安徽省自然科学基金(No.1408085MF116)~~

摘　　要：目前,正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)技术已被广泛应用于无线电通信技术领域,而同步是正交频分复用(OFDM)技术研究的关键问题之一。因此,基于传统OFDM循环前缀同步法,提出一种新的定时同步算法,引入具有良好自相关性的Golay互补序列对,用于修饰OFDM符号,使其具备更好的自相关特性。仿真结果表明,新方法在定时同步上的性能较传统方法有明显提高,在无线电通信技术中具有一定的实用价值。OFDM（Orthogonal frequency division multiplexing） technology is now widely used in the field of radio communication, and synchronization is one of the key problems in the research of orthogonal frequency division multiplexing technology. A new timing synchronization algorithm based on the traditional OFDM cyclic prefix synchronization method is proposed, into which Golay complementary sequence pair with good self correlation is introduced, for modifying OFDM and making it with even better self-correlation property. Simulation results indicate that this proposed new method is significantly improved in its performance as compared with the traditional method, and thus is of certain practical value in radio communication technology.

关 键 词：OFDM 定时同步 GOLAY码 自相关性 

分 类 号：TN911[电子电信—通信与信息系统]