北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (6): 38-43.doi: 10.13190/jbupt.201206.38.zhaojh

• 论文 • 上一篇    下一篇

提高NLOS环境下室内定位精度的新方法

赵军辉, 张雪雪, 曾龙基   

  1. 1. 北京交通大学 轨道交通控制与安全国家重点实验室, 北京 100044;2. 东南大学 移动通信国家重点实验室, 南京 210096;3. 北京交通大学 电子与信息工程学院, 北京 100044
  • 收稿日期:2012-03-18 修回日期:2012-06-29 出版日期:2012-12-28 发布日期:2013-01-07
  • 通讯作者: 赵军辉 E-mail:junhuizhao@bjtu.edu.cn
  • 作者简介:赵军辉(1973-),男,副教授,Email:jhzhao@ieee.org
  • 基金资助:

    国家自然科学基金项目(61172073);轨道交通控制与安全国家重点实验室(北京交通大学)课题(RCS2011ZT003);中国科学院无线传感网与通信重点实验室开放课题(2011005);东南大学移动通信国家重点实验室开放课题(2012D19);中央高校基本科研业务费专项资金项目(2012JBM210,2012YJS130)

An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment

ZHAO Jun-hui, ZHANG Xue-xue, ZENG Long-ji   

  1. 1. State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China;2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;3. School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2012-03-18 Revised:2012-06-29 Online:2012-12-28 Published:2013-01-07
  • Contact: ZHAO Junhui E-mail:junhuizhao@bjtu.edu.cn

摘要:

针对室内环境下无线信号的功率既可能增强又可能减弱而导致定位测量误差具有正负偏置的问题,提出了一种改进的到达信号强度室内定位算法,利用定位圆环相交,再对相交各点采用加权质心的算法获得移动台位置.仿真结果表明,这种定位方法能有效提高非视距环境下室内定位的精度.

关键词: 室内定位, 非视距, 到达信号强度, 定位圆环

Abstract:

Signal power can be enhanced or decreased due to the interference of both none line of sight and path loss in the indoor environment, which causes a bias property of both positive and negative in the received signal strength (RSS) measurement error. A method for improving RSS positioning is proposed. The intersections of positioning annuluses are used in the algorithm of weighted centroid to estimate the position of the mobile stations. Simulation shows that this algorithm can improve the location accuracy in the indoor environment.

Key words: indoor positioning, none line of sight, received signal strength, positioning annuluses

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