基于相关矩阵的MIMO建模与仿真

摘要

要对MIMO信道传输理论、特性及关键技术进行深入探究,必须建立在能够合理反映MIMO传输环境及信道衰落特性的信道模型的基础上,通过研究MIMO信道的衰落特性与信道建模方法,进一步地分析影响MIMO信道性能的主要因素.通过对MIMO信道的基本原理、特性及应用进行深入探究,以及对MIMO信道建模理论和方法进行分析,采用相关矩阵法建立信道模型,对角度功率谱、发射机和接收机的结构、多普勒功率谱密度和功率延迟等参数进行了合理化设置.对MIMO信道和高斯信道进行对比分析的结果表明,在信噪比一定的条件下,MIMO信道的平均信道容量远远大于高斯信道的平均信道容量.%In deep research on MIMO wireless channel transmission theory,characteristics and key technologies,we must establish the channel model which can reasonably reflect the characteristics of MIMO transmission environment and channel fading.By studying the fading characteristics of MIMO channel and the channel modeling method,the main factors that affect the performance of MIMO wireless channel are analyzed.Here the basic principles,characteristics and applications of MIMO wireless channel are deeply explored,and the theory and method of MIMO channel modeling are analyzed.The correlation matrix method is used to establish the reasonable channel model,and the angular power spectrum,transmitter and receiver structure,Doppler power spectral density,power delay and other parameters are reasonably set.Finally the contrast analysis to the MIMO channel and the Gaussian channel is carried on.