Channel estimation is an important part for coherent detection.
信道估计是相干检测的重要组成部分。
So it is necessary to study the channel estimation method of MIMO-OFDM systems.
因此，有必要对MIMO - OFDM系统的无线信道估计方法进行研究。
It needs channel state information, which is obtained through channel estimation.
这需要通过信道估计获得信道状态信息。
Besides, its blind channel estimation performance is also analyzed in this paper.
还对信道盲估计性能进行了分析。
Channel Estimation is an important technology in OFDM system which affects the performance directly.
信道估计是OFDM系统中一项关键技术，对于整个系统的性能具有直接的影响。
Channel vector estimation is a key to smart antenna.
矢量信道估计是智能天线技术的一个关键之处。
Then, the principle and method of channel pre-estimation is introduced.
接着，说明了信道预估计的原理及方法。
Then, the principle and method of channel pre-estimation is introduced.
接着，说明了信道预估计的原理及方法。
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