| 无线传感器网络LQI测距定位算法及其误差研究 |
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| 引用本文： | 胡倩倩,曾庆化,赵飞,梁玉琴.无线传感器网络LQI测距定位算法及其误差研究[J].小型微型计算机系统,2011,32(1). |
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| 作者姓名： | 胡倩倩 曾庆化 赵飞 梁玉琴 |
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| 作者单位： | 南京航空航天大学导航研究中心,江苏南京,210016 |
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| 基金项目： | 无线传感器定位中的现实非齐次误差分部研究项目(REDOWLJEB/China/1YearJP)资助; 英国皇家学会(RoyalSociety)资助 |
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| 摘 要： | 无线传感器定位算法对无线传感器的工程应用具有重要的意义.针对基于LQ I测距的无线传感器网络,研究了测距模型的建立并对比分析了最小二乘定位算法和质心定位算法,相关仿真研究结果表明:该两种定位算法的精度与测距误差的性质具有鲜明的规律性,当测距误差正向分布时,最小二乘定位比质心算法精度高;当测距误差正负双向分布时,质心算法比最小二乘定位精度高.最后,文中通过搭建的Z igBee硬件平台实验验证了仿真的结果.本文从测距误差模型入手对无线传感器定位算法进行研究,仿真结果与实验验证相一致,有利于W SN的推广应用.
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| 关 键 词： | 无线传感器网络定位算法 ZigBee 测距误差模型 仿真与验证 |
Research on LQI Location Algorithm and Errors for Wireless Sensor Networks |
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| HU Qian-qian,ZENG Qing-hua,ZHAO Fei,LIANG Yu-qin.Research on LQI Location Algorithm and Errors for Wireless Sensor Networks[J].Mini-micro Systems,2011,32(1). |
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| Authors: | HU Qian-qian ZENG Qing-hua ZHAO Fei LIANG Yu-qin |
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| Affiliation: | HU Qian-qian,ZENG Qing-hua,ZHAO Fei,LIANG Yu-qin(Navigation Research Center,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Wireless sensor network location algorithm plays an important role in the engineering applications of WSN.This paper intensively studies the modeling of distance measurement and does a comparative analysis of least squares location algorithm and centroid location algorithm.Simulation results show that positioning accuracy of the two algorithms is obvious related to the distribution of ranging errors.When the distribution of ranging error is positive,least squares location algorithm is better and when the di... |
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| Keywords: | WSN location algorithm ZigBee ranging error distributions simulation and tests |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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