| 一种室内定位中NLOS误差抑制算法 |
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| 引用本文： | 李军,张会清.一种室内定位中NLOS误差抑制算法[J].控制工程,2009(Z2). |
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| 作者姓名： | 李军 张会清 |
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| 作者单位： | 北京工业大学电子信息与控制工程学院; |
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| 摘 要： | 在无线定位系统中,尤其是在室内定位中,非视距(NLOS)误差的存在使定位性能急剧下降。为克服非视距传播带来的定位误差,提出了一种针对NLOS环境下的基于卡尔曼滤波器(KF)的动态跟踪定位算法,将广泛应用于雷达系统和飞机导航系统的成熟的卡尔曼滤波器应用于室内定位中。实验结果表明,该方法可以满足室内环境下无线定位的需求,即使在恶劣的NLOS环境下也能够获得很高的定位精度,是一种可行的无线局域网定位技术。
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| 关 键 词： | 室内定位 非视距误差 卡尔曼滤波器 接收信号强度 |
An Algorithm for NLOS Mitigation in Indoor Positioning Systems |
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| LI Jun,ZHANG Hui-qing.An Algorithm for NLOS Mitigation in Indoor Positioning Systems[J].Control Engineering of China,2009(Z2). |
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| Authors: | LI Jun ZHANG Hui-qing |
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| Affiliation: | School of Electronic Information and Control Engineering;Beijing University of Technology;Beijing 100124;China |
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| Abstract: | In wireless positioning systems,especially in the indoor location,the existence of non-line of sight(NLOS)errors makes the performance of the positioning a sharp decline.A dynamic tracking algorithm is presented based on Kalman filter for NLOS situation.Kalman filter which is widely used in radar system and aircraft navigation is applied to indoor positioning.According to experiments,this method turns out to be an applicable technology for in-building WALN positioning determination and the positioning estim... |
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| Keywords: | indoor positioning non-line of sight Kalman filter received signal strength indicator |
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