中文说明：
分析了相位噪声对正交频分复用(OFDM)系统的影响，发现相位噪声不仅产生 通用相角错误(CPE)，而且还会产生载波间干扰(ICI)，这都使OFDM系统的性能急剧恶化，因此必须对CPE和ICI进行校正。文中给出了基于MSE准则的CPE校正方法，考虑到 ICI干扰主要来源于相邻信道,进而提出了基于LMS法则的自适应相邻信道干扰消除方 法.整个算法简单高效。仿真结果表明，所提出的算法大大改善了OFDM系统的性能。
English Description：
The influence of phase noise on orthogonal frequency division multiplexing (OFDM) system is analyzed. It is found that phase noise not only produces general phase error (CPE), but also produces inter carrier interference (ICI), which makes the performance of OFDM system deteriorate sharply. Therefore, it is necessary to correct CPE and ICI. This paper presents a CPE correction method based on MSE criterion. Considering that ICI interference mainly comes from adjacent channels, an adaptive adjacent channel interference cancellation method based on LMS rule is proposed. The whole algorithm is simple and efficient. Simulation results show that the proposed algorithm greatly improves the performance of OFDM system.