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针对现有多输入多输出(MIMO)信道空间相关性分析方法的不足,提出了一种新的分析方法:对包含收发天线在内的无线散射信道模型进行全波分析,利用矩量法求解天线电流分布,并由接收天线的电流分布直接推导出MIMO信道接收端的空间包络相关系数.在建模过程中,提出根据能量比的原则确定信道模型参数.仿真结果表明,与现有基于来波角谱分布求解相关系数的方法相比,该方法不仅与之有较好的相容性,而且无需假设来波角谱分布.
Aiming at the shortcomings of the current spatial correlation analysis of multiple input multiple output (MIMO) channels, a new analysis method is proposed: full-wave analysis of the wireless scattering channel model including the receiving and transmitting antennas, And the current distribution of the receiving antenna directly derives the spatial envelope correlation coefficient of the receiving end of the MIMO channel.In the modeling process, the channel model parameters are determined according to the principle of energy ratio.The simulation results show that, Compared with the method of solving the correlation coefficient of the angular spectrum distribution, the method not only has good compatibility with it, but also does not need to assume the distribution of the wave angle spectrum.