特高频/甚高频频段OFDM系统同步技术的算法改进及仿真  

Algorithm Improvement and Simulation of Synchronization Technology of OFDM System Within VHF/UHF Frequency Band

作　　者：吴虹[1] 梁裕民[1] 戈立军[1] 刘军[1] 袁佳杰[1] 周志江[1] 谭卫毅[1] 张莉[1] 

机构地区：[1]南开大学信息技术科学学院,天津300071

出　　处：《电子学报》2007年第12期2384-2388,共5页Acta Electronica Sinica

基　　金：天津市自然科学基金(No.06YFJMJC00600);天津市应用基础及前沿技术研究计划重点项目(No.07JCZDJC5700)

摘　　要：本文研究了一个以OFDM技术为核心,大幅提高VHF/UHF频段频带利用率的无线数据通信系统,并对该系统的关键技术——同步进行了较为详细的讨论,包括帧同步、符号同步及小数倍频偏、整数倍频偏同步.与已有文献记载的同步方案相比,该系统不但具有较小的运算量、较低的实现复杂度,而且具有较好的性能.This paper studies a wireless data communication system based on OFDM technology which could greatly increase the frequency efficiency of VHF/UHF frequency band. The paper gives a detailed discussion to the synchronization which is the key technology of the system,including frame synchronization, symbol synchronization, fraction frequency offset and integral frequency offset synchronization. Compared with the known solutions of synchronization, this system needs less calculation and lower realization complexity but also has a good performance.

关 键 词：同步 算法改进 VHF/UHF频段 高频带利用率 

分 类 号：TN914.4[电子电信—通信与信息系统]