一种宽带多输入多输出双向信道的频域辨识方法  

Identification of joint transmit-receive polarization wideband MIMO directional channel in frequency domain

作　　者：郑剑锋[1] 张敬修[2] 姚元[1] 冯正和[1] 

机构地区：[1]清华大学电子工程系,北京100084 [2]陆军军官学院信息化弹药研究所,安徽合肥230031

出　　处：《电波科学学报》2012年第1期12-17,209,共7页Chinese Journal of Radio Science

基　　金：清华大学传信基金

摘　　要：提出一种基于空间交换最大期望(SAGE)算法的信道频域辨识方法。该方法能够有效地估计收发联合宽带多输入多输出(MIMO)双向信道的三维离开角、到达角、极化等特征参数。仿真的结果表明:该方法能准确地估计MIMO双向信道的参数,适合MIMO信道建模的需求。In this paper,the frequency domain space-alternating generalized expectation-maximization（FD-SAGE）algorithm is extended to the joint transmit-receive polarization multiple-input multiple-output（MIMO）case in order to determine the 3-D angular,temporal and polarization channel characteristics in joint transmit-receive radio link.Synthetic environments are generated to testify the efficiency of the proposed algorithm in a severe polarization multi-path indoor scenario.The results reveals that the proposed algorithm demonstrates an effective identification of the joint transmit-receive polarization MIMO channel and have stable performance.

关 键 词：MIMO 极化 信道测量 

分 类 号：TN82[电子电信—信息与通信工程]