| 一种无线定位中NLOS误差抑制算法 |
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| 引用本文： | 任明荣,王普,张会清,刘星桥.一种无线定位中NLOS误差抑制算法[J].北京工业大学学报,2007,33(3):257-260. |
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| 作者姓名： | 任明荣 王普 张会清 刘星桥 |
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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,北京,100022;北京理工大学,信息科学技术学院自动控制系,北京,100081 |
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| 摘 要： | 为克服非视距传播带来的定位误差,提出了非视距误差的窗函数补偿法．通过测量p个采样点的均方根延迟计算平均超量延迟,实现窗长为p的非视距误差的窗函数补偿法．相对最优化方法,该算法的计算量明显减少;相对单点补偿法,该算法的精度明显提高．对移动台处于3种不同位置的情况进行了仿真分析,结果表明,该算法具有较高的定位精度．
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| 关 键 词： | 非视距传播 平均超量延时 到达时间 窗函数补偿 |
| 文章编号： | 0254-0037(2007)03-0257-04 |
| 修稿时间： | 11 29 2005 12:00AM |
An Algorithm for NLOS mitigation in Wireless Location Systems |
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| REN Ming-rong,WANG Pu,ZHANG Hui-qing,LIU Xing-qiao.An Algorithm for NLOS mitigation in Wireless Location Systems[J].Journal of Beijing Polytechnic University,2007,33(3):257-260. |
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| Authors: | REN Ming-rong WANG Pu ZHANG Hui-qing LIU Xing-qiao |
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| Affiliation: | 1.School of Electronic Information and control Engineering;Beijing University of Technology Beijing 100022;China;2.Department of Automatie Control;School of Information Science and Technology;Beijing Institute of Technology;Beijing 100081;China. |
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| Abstract: | In order to mitigate location error caused mainly by non-line-of-sight propagation,a new algorithm called window function compensation,is proposed.By measuring the delay spread of p values,the mean ex- cess delay can be obtained.Window function,whose length is p,is adopted to calibrate NLOS errors.Com- pared with Wang xin's optimal method,the complexity of the new algorithm is greatly reduced.Compared with Jeong's method,which calibrate single value,the location accuracy is greatly improved.The computer sim... |
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| Keywords: | non-line-of-sight(NLOS) mean excess delay Time of arrival(TOA) window function |
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