本文首先介绍了MIMO—OFDM系统模型,然后讨论了研究MIMO—OFDM移动通信系统信道估计的意义.紧接着对MIMO—OFDM系统目前存在的几种典型盲信道估计算法进行分析和讨论,最后总结和展望了MIMO—OFDM系统信道估计算法的研究方向和关键问题。
The system model of MIMO-OFDM system is introduced at the beginning of the paper, and then the significance of channel estimation for MIMO-OFDM wireless systems is analyzed.Further, some typical blind channel estimation algorithms are discussed and analyzed,Finally,the research direction and some key problems about channel estimation of MIMO-OFDM systems are summarized in this paper,