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1.算法描述 MIMO-OFDM的信道估计：时，频，空三个域都要考虑，尤其是在空域，不同天线发射的导频序列需要相互正交，否则在接收端无法区分各个导频，造成导频污染，就无法正确地估计信道。正交的方法有很多，可以是时间上错开，在某个时间只允许某个天线发送。也可以在频率上错开。还可以让导频信号本身就是正交...

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更新时间 2023-09-21 03:57:15

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