电讯技术Issue(4)：498-503,6.DOI:10.3969/j.issn.1001-893x.2013.04.024
一种改进的单音干扰下OFDM系统盲信道估计算法
An Improved Blind Channel Estimation Method for OFDM Systems with Single Tone Interference
郝黎宏 1刘伟2
作者信息
- 1. 中国西南电子技术研究所，成都610036
- 2. 解放军总参陆航部装备发展办公室，北京100012
- 折叠
摘要
Abstract
Channel estimation is very important in the coherent detection Orthogonal Frequency Division Multi-plexing(OFDM)systems. A precoded-based blind channel estimation method for OFDM systems in the presence of single tone interference is studied. By using the frequency domain information of received signals to accurately estimate and reconstruct the interference signals,the proposed method can eliminate the effects of interference signals and improve the accuracy of channel estimation. Compared with other blind channel estimation algo-rithms,the precoded-based blind channel estimation has low complexity and fast convergence speed. The simu-lation results show that the proposed method achieves good performances both in the estimation of interferences and channel.关键词
正交频分复用/单音干扰/预编码/盲信道估计Key words
OFDM/single tone interference/precoding/blind channel estimation分类
信息技术与安全科学引用本文复制引用
郝黎宏,刘伟..一种改进的单音干扰下OFDM系统盲信道估计算法[J].电讯技术,2013,(4):498-503,6.
