Non-line-of-sight error mitigating algorithm based on scattering models via multi-antenna system  

作　　者：ZHU Xiao-xuan SHI Ming-yang ZHANG Jing TAO Xiao-feng 

机构地区：[1]Key Laboratory of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Ministry of Education, Wireless Technology Innovation Institute (WTI), Beijing 100876, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2008年第1期18-22,共5页中国邮电高校学报（英文版）

摘　　要：In urban environment with serious blocking of direct paths, the non-line-of-sight （NLOS） propagation influences the location estimation accuracy. In this article, a novel algorithm is developed, which can mitigate the NLOS errors in location estimation significantly. Utilizing multiantenna array, the information of scatterers that cause the NLOS propagation is obtained. Then, we combine the information with TOA/TDOA based location algorithm to estimate the location of mobile station （MS）. The simulation results show that our method can mitigate NLOS errors and enhance the location accuracy greatly.In urban environment with serious blocking of direct paths, the non-line-of-sight （NLOS） propagation influences the location estimation accuracy. In this article, a novel algorithm is developed, which can mitigate the NLOS errors in location estimation significantly. Utilizing multiantenna array, the information of scatterers that cause the NLOS propagation is obtained. Then, we combine the information with TOA/TDOA based location algorithm to estimate the location of mobile station （MS）. The simulation results show that our method can mitigate NLOS errors and enhance the location accuracy greatly.

关 键 词：MULTI-ANTENNA location algorithm NLOS time of arrival （TOA） 

分 类 号：TN915.01[电子电信—通信与信息系统]