因此，有必要对MIMO - OFDM系统的无线信道估计方法进行研究。
So it is necessary to study the channel estimation method of MIMO-OFDM systems.
无线OFDM系统中基于导频辅助的信道估计必须折衷考虑算法性能与算法复杂度。
The tradeoff between performance and complexity must be taken into account in channels estimation algorithm of wireless OFDM systems.
本文研究了OFDM和MIMO-OFDM无线通信系统的信道估计技术以及MIMO-OFDM系统的自适应调制技术。
This dissertation is concerned with channel estimation in both OFDM and MIMO-OFDM wireless communication systems and adaptive modulation in MIMO-OFDM systems.
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