| 基于EKF的无线传感器网络移动信标定位算法 |
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| 引用本文： | 占宏,黎善斌,胥布工. 基于EKF的无线传感器网络移动信标定位算法[J]. 电视技术, 2012, 36(5): 95-98. DOI: 10.3969/j.issn.1002-8692.2012.05.028 |
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| 作者姓名： | 占宏 黎善斌 胥布工 |
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| 作者单位： | 1.华南理工大学自动化科学与工程学院,广东广州,510640;2.华南理工大学自动化科学与工程学院,广东广州,510640;3.华南理工大学自动化科学与工程学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金-广东省联合基金,中央高校基本科研业务费专项基金,高等学校博士点基金 |
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| 摘 要： | 针对无线传感器网络节点定位精度较低的问题,提出一种基于扩展卡尔曼滤波的移动信标节点定位算法.该算法采用等距三重优化覆盖思想确定虚拟信标分布,利用蚁群算法获取最优遍历路径,同时引入扩展卡尔曼滤波算法以提高节点定位精度.通过对节点通信半径、虚拟信标数目、路径长度、迭代次数等参数分别进行仿真验证,结果表明本文算法定位精度明显优于普通质心定位算法,同时该算法在提高网络覆盖度、降低网络成本等方面也有较大优势.
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| 关 键 词： | 无线传感器网络 移动信标 节点定位 扩展卡尔曼滤波 |
Mobile Beacon Localization Algorithm Based on EKF for Wireless Sensor Network |
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| ZHAN Hong , LI Shanbin , XU Bugong. Mobile Beacon Localization Algorithm Based on EKF for Wireless Sensor Network[J]. Ideo Engineering, 2012, 36(5): 95-98. DOI: 10.3969/j.issn.1002-8692.2012.05.028 |
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| Authors: | ZHAN Hong LI Shanbin XU Bugong |
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| Affiliation: | ( College of Automation Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A mobile beacon localization algorithm based on Extended Kalman Filter(EKF) is proposed to improve the precision of Wireless Sensor Network(WSN).The algorithm adopts a virtual beacons deployment based on equilateral triple optimal coverage.And it uses the ant colony algorithm(ACA) to get the optimal path when mobile beacons tour all the virtual beacons.The EKF algorithm is also introduced to further increase the location precision.The simulation is carried out by the different node communication radius,virtual beacon number,path length and iteration times.And the results show that the location precision is much better than the ordinary centroid localization algorithm.This algorithm also increases coverage greatly and reduces cost of the network. |
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| Keywords: | wireless sensor network mobile beacon node localization extended Kalman filter |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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