计算机应用研究2011，Vol.28Issue(2)：681-684,4.DOI:10.3969/j.issn.1001-3695.2011.02.077
基于高次数据拟合OFDM系统快时变信道估计算法
Channel estimation method for rapidly time-vary channel based on high-order data fitting in OFDM systems
摘要
Abstract
In order to further reduce the calculation complexity and estimated parameter, proposed a novel channel estimation method for rapidly time-vary channel based on data fitting. Utilized the periodic characteristic of PN sequence, separated channel into some blocks in an OFDM symbol in time domain, the number of estimated parameter could be reduced; then used the high-order data firing method, the more pilot tones could be used in data firing, finally, calculated the residual error of fitting parameter, got the optimum firing parameter, and improved the accuracy of channel estimation efficiently. Theory and experiments show that method of validate in rapidly time-vary channel circumstances.关键词
正交频分复用/信道估计/时变信道/高次数据拟合分类
信息技术与安全科学引用本文复制引用
段鹏,何明一,薛敏彪,党群..基于高次数据拟合OFDM系统快时变信道估计算法[J].计算机应用研究,2011,28(2):681-684,4.基金项目
国家"863-705"主题资助项目(2004AA752022) （2004AA752022）
陕西省2010年度工业攻关项目(2010K06-09) （2010K06-09）
