Signal Path Reckoning Localization Method in Multipath Environment  

作　　者：Junhui Zhao Lei Li Hao Zhang Yi Gong 

机构地区：[1]School of Electronic and Information Engineering,Beijing Jiaotong University [2]School of Information Engineering,East China Jiaotong University [3]Department of Electrical and Electronic Engineering,South University of Science and Technology of China

出　　处：《China Communications》2017年第3期182-189,共8页中国通信（英文版）

基　　金：supported by the National Natural Science Foundation of China (61471031);the Fundamental Research Funds for the Central Universities,Beijing Jiaotong University (2013JBZ001);National Science and Technology Major Project (2016ZX03001014006);the Open Research Fund of National Mobile Communications Research Laboratory,Southeast University (No.2017D14);Shenzhen Peacock Program under Grant No.KQJSCX20160226193545

摘　　要：In the wireless localization application, multipath propagation seriously affects the localization accuracy. This paper presents two algorithms to solve the multipath problem. Firstly, we improve the Line of Possible Mobile Device(LPMD) algorithm by optimizing the utilization of the direct paths for single-bound scattering scenario. Secondly, the signal path reckoning method with the assistance of geographic information system is proposed to solve the problem of localization with multi-bound scattering paths. With the building model's idealization, the proposed method refers to the idea of ray tracing and dead reckoning. According to the rule of wireless signal reflection, the signal propagation path is reckoned using the measurements of emission angle and propagation distance, and then the estimated location can be obtained. Simulation shows that the proposed method obtains better results than the existing geometric localization methods in multipath environment when the angle error is controlled.In the wireless localization application, multipath propagation seriously affects the localization accuracy. This paper presents two algorithms to solve the multipath problem. Firstly, we improve the Line of Possible Mobile Device（LPMD） algorithm by optimizing the utilization of the direct paths for single-bound scattering scenario. Secondly, the signal path reckoning method with the assistance of geographic information system is proposed to solve the problem of localization with multi-bound scattering paths. With the building model＇s idealization, the proposed method refers to the idea of ray tracing and dead reckoning. According to the rule of wireless signal reflection, the signal propagation path is reckoned using the measurements of emission angle and propagation distance, and then the estimated location can be obtained. Simulation shows that the proposed method obtains better results than the existing geometric localization methods in multipath environment when the angle error is controlled.

关 键 词：wireless localization multipath propagation signal reflection path reckoning 

分 类 号：TN92[电子电信—通信与信息系统]