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建立了矿井MIMO信道的模型,推导出该信道模型的空间相关性函数,分析了发送天线端天线间距和接收端天线间距对空间相关性的影响,在此MIMO信道模型的基础上,讨论了矿井的MIMO信道的空间相关性对系统误码率的影响,仿真结果表明,煤矿井下MIMO信道空间相关性越高,系统的误码率就越大。
The model of mine MIMO channel is established, and the spatial correlation function of the channel model is deduced. The influence of the distance between the transmitting antenna and the receiving antenna on the spatial correlation is analyzed. Based on the MIMO channel model, The spatial correlation of the MIMO channel affects the bit error rate of the system. The simulation results show that the higher the spatial correlation of the MIMO channel in the coal mine, the greater the bit error rate of the system.