| 提高NLOS环境下室内定位精度的新方法 |
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| 引用本文： | 赵军辉,张雪雪,曾龙基. 提高NLOS环境下室内定位精度的新方法[J]. 北京邮电大学学报, 2012, 35(6): 38-43 |
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| 作者姓名： | 赵军辉 张雪雪 曾龙基 |
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| 作者单位： | 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 |
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| 基金项目： | 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项目(2011JBM210,2012YJS130) |
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| 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.
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| 关 键 词： | 室内定位 非视距 到达信号强度 定位圆环 |
| 收稿时间： | 2012-03-18 |
An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment |
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| ZHAO Jun-hui,ZHANG Xue-xue,ZENG Long-ji. An Approach to Improving the Accuracy of the Indoor Positioning with NLOS Environment[J]. Journal of Beijing University of Posts and Telecommunications, 2012, 35(6): 38-43 |
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| Authors: | ZHAO Jun-hui ZHANG Xue-xue ZENG Long-ji |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | indoor positioning none line of sight received signal strength positioning annuluses |
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