计算机与现代化Issue(5)：1-4,10,5.DOI:10.3969/j.issn.1006-2475.2024.05.001
基于矩阵恢复的OFDM信道估计方法
OFDM Channel Estimation Based on Matrix Recovery
摘要
Abstract
Orthogonal frequency division multiplexing(OFDM)is a crucial technology in channel estimation,this paper pro-poses an OFDM channel estimation method based on matrix recovery,multiple consecutive OFDM signal in the frequency do-main channel is constructed to a channel matrix.Since this channel matrix is low rank,the channel estimation problem can be converted to the weighted truncated kernel norm minimization problem of the channel matrix and the improved Singular Value Thresholding algorithm is used for recovery.The simulation results show that compared with the traditional channel estimation al-gorithm,the proposed method can use fewer pilot signals when the same precision channel estimation is obtained.Compared with the channel estimation method based on compressed sensing,the proposed method consumes the same amount of pilot frequency but can directly obtain high precision frequency domain estimation of OFDM channel.关键词
正交频分复用/信道估计/矩阵恢复/奇异值阈值算法Key words
OFDM/channel estimation/matrix recovery/singular threshold algorithm分类
信息技术与安全科学引用本文复制引用
张晶晶,黄学军..基于矩阵恢复的OFDM信道估计方法[J].计算机与现代化,2024,(5):1-4,10,5.基金项目
国家自然科学基金资助项目(61427801) （61427801）
