| 多径环境下多终端协作高精度定位算法 |
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| 引用本文： | 刘林,范平志.多径环境下多终端协作高精度定位算法[J].西南交通大学学报,2011,46(4):676-680. |
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| 作者姓名： | 刘林 范平志 |
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| 作者单位： | 西南交通大学信息编码与传输省重点实验室,四川成都,610031 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目(SWJTU09CX037); 西南交通大学信息编码与传输省重点实验室开放研究基金资助课题(2008-5) |
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| 摘 要： | 为抑制非视距误差对定位精度的影响,提出了一种异构网络环境下利用移动终端间的协作信息提高定位精度的算法.该算法根据测量的TOA(time of arrival)与基于GIS定义的SF(sentinel function)之间的关系,对移动终端与基站间的传播进行非视距识别.仿真分析结果表明,在多径环境下,提出的多终端协作定位算法的定位精度比现有算法大为提高.在协作终端数为8,其中处于视距传播的终端数为5时,提出的算法将定位误差小于90 m的概率从53%提高到98%.
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| 关 键 词： | 无线定位 多径环境 非视距 协作定位 |
High-Accuracy Cooperative Positioning Algorithm in Multipath Environment |
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| LIU Lin,FAN Pingzhi.High-Accuracy Cooperative Positioning Algorithm in Multipath Environment[J].Journal of Southwest Jiaotong University,2011,46(4):676-680. |
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| Authors: | LIU Lin FAN Pingzhi |
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| Institution: | LIU Lin,FAN Pingzhi(Key Lab of Information Coding and Transmission,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to protect location estimates from NLOS(non-line-of-sight) error influence,a high-accuracy cooperative positioning algorithm was proposed.In this algorithm the cooperative information between MSs(mobile stations) is used to enhance the location accuracy,and the relationship between measured TOA(time of arrival) and SF(sentinel function) defined by GIS(geographic information system) is utilized to identify NLOS.The detailed performance analysis of the algorithm was given.The simulation results show ... |
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| Keywords: | wireless location multipath environment non line of sight cooperative location |
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