计算机工程与应用2012，Vol.48Issue(7)：92-94,157,4.DOI:10.3778/j.issn.1002-8331.2012.07.023
OFDM基带系统的FPGA设计及其同步技术研究
FPGA design of OFDM baseband system and research on OFDM synchronization.
摘要
Abstract
Carrier and symbol timing synchronization is the key factor which can affact the performance of OFDM system greatly. In this paper, an improved symbol timing synchronization solution of Schmidl&Cox algorithm for IEEE 802. 11 a is introduced. As for the improved solution here, the structure of the long training symbol in IEEE 802. 1 la's frame is changed, and with the use of time delay autocorrelation, the plateau of the timing metric of Schmidl&Cox method is eliminated. The solution proposed in this paper significantly improves the accuracy of symbol timing synchronization in OFDM system. The FPGA design of the baseband system of IEEE 802.11a using system generator in simulink development enviroment is given in part 3, and the whole design can successfully satisfy the function requirement of the system very well.关键词
正交频分复用/同步/现场可编程门阵列/训练序列Key words
Orthogonal Frequency Division Multiplexing (OFDM)/synchronization/Field Programmable Gate Array (FPGA)/training sequence分类
信息技术与安全科学引用本文复制引用
李斌,余小游,Besong Samuel..OFDM基带系统的FPGA设计及其同步技术研究[J].计算机工程与应用,2012,48(7):92-94,157,4.基金项目
湖南省重点实验室基金项目. （）
