| 抑制非直达波误差的高阶矩方法 |
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| 引用本文： | 万群,王军,罗咏劼,杨万麟. 抑制非直达波误差的高阶矩方法[J]. 电子学报, 2005, 33(10): 1822-1824 |
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| 作者姓名： | 万群 王军 罗咏劼 杨万麟 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054;河北移动通信有限责任公司邯郸分公司,河北邯郸,056001 |
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| 摘 要： | 加权线性最小二乘定位算法在直达波传播条件下具有良好的定位性能,但是,在测量误差是非直达波传播导致的非对称分布时,常规的处理方法因为未考虑测量误差的高阶矩信息,仍存在进一步改善的余地.本文提出了一种抑制非直达波测量误差的高阶矩算法,目前常用的测距定位算法仅是该算法在直达波传播环境中的特例.仿真实验表明,该方法能够较明显的抑制恶劣的非直达波传播环境对测距定位性能的不良影响.
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| 关 键 词： | 测距定位 非直达波误差 非对称分布 高阶矩信息 |
| 文章编号： | 0372-2112（2005）10-1822-03 |
| 收稿时间： | 2004-12-07 |
| 修稿时间： | 2004-12-072005-08-04 |
High-Order Moment Method for Mitigation of NLOS Error |
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| WAN Qun,WANG Jun,LUO Yong-Jie,YANG Wan-Lin. High-Order Moment Method for Mitigation of NLOS Error[J]. Acta Electronica Sinica, 2005, 33(10): 1822-1824 |
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| Authors: | WAN Qun WANG Jun LUO Yong-Jie YANG Wan-Lin |
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| Affiliation: | 1. Dept.of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China;2. Heibei Mobile Communication Co.Ltd,Handan Branch,Handan,Hebei 056001,China |
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| Abstract: | Though the weighted least squares algorithm for mobile location performs well in case of line-of-sight propagation,the conventional approach may be improved further in case of asymmetrically distributed measurement errors due to non-line-of-sight(NLOS) effect because high-order moment information should not be ignored.In this paper,a high-order moment approach is proposed to mitigate the NLOS error.The ordinary range location algorithm coincides with a special case of this method.Numerical examples show that it improves the location performance significantly in serious NLOS environment. |
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| Keywords: | range location non-line of sight asymmetric distribution high-order moment |
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