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为了研究双极化多输入多输出(MIMO)系统的信道特性,进行了室内信道测量实验,通过Elektrobit多维信道探测器获得视距和非视距场景下的信道冲激响应.对功率时延谱、均方根时延扩展、信道容量和交叉极化鉴别率等信道参数进行分析,得出电波在水平极化、垂直极化和双极化下不同的传播机理.仿真结果表明,双极化MIMO系统有利于多径分量的产生,相比于单极化系统有显著的信道容量优势.仿真结果对于室内MIMO系统的设计以及系统级和链路级仿真有一定的参考价值.
In order to study the channel characteristics of the dual-polarized MIMO system, indoor channel measurement experiments were conducted, and the channel impulse response in NLOS and NLOS scenes was obtained by Elektrobit multi-channel channel detector. , Root mean square delay spread, channel capacity and cross-polarization discriminating channel parameters were analyzed to get the different propagating mechanism of the electric wave under the horizontal polarization, the vertical polarization and the dual polarization. The simulation results show that the dual polarization MIMO system is beneficial to the generation of multipath components, which has significant channel capacity advantage over single-pole system.The simulation results have certain reference value for the design of indoor MIMO system and system-level and link-level simulation.