| 基于距离和角度信息的无线传感器网络定位算法(英文) |
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| 引用本文： | 诸燕平,黄大庆.基于距离和角度信息的无线传感器网络定位算法(英文)[J].南京航空航天大学学报(英文版),2009,26(1). |
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| 作者姓名： | 诸燕平 黄大庆 |
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| 作者单位： | 1. 南京航空航天大学信息科学与技术学院,南京,210016,中国
2. 南京航空航天大学无人机研究院,南京,210016,中国 |
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| 摘 要： | 提出一种基于距离和信号到达角信息的无线传感器网络节点自身定位算法.在所有节点的坐标轴方向都是未知的假定下,用信号到达角信息来计算信号到达角度差,然后将定位问题转化为一个凸集优化问题,节点间的几何关系也相应地转化成为线性或二次约束条件.当距离和角度测量值足够精确时,该算法是一个线性规划问题.考虑测量误差时,通过引入辅助变量,该算法可以转化为二次规划问题.通过仿真分析证明了该定位算法的有效性,并对距离和角度误差量对定位精度的影响进行了定量分析.仿真结果表明,在距离和角度误差为5%的时候,该定位算法可以满足定位精度要求.
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| 关 键 词： | 线性规划 二次规划 无线传感器网络 信号到达角 |
LOCALIZATION ALGORITHM USING DISTANCE AND ANGLE INFORMATION IN WIRELESS SENSOR NETWORKS |
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| Zhu Yanping,Huang Daqing.LOCALIZATION ALGORITHM USING DISTANCE AND ANGLE INFORMATION IN WIRELESS SENSOR NETWORKS[J].Transactions of Nanjing University of Aeronautics & Astronautics,2009,26(1). |
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| Authors: | Zhu Yanping Huang Daqing |
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| Institution: | 1.College of Information Science & Technology;NUAA;29 Yudao Street;Nanjing;210016;P.R.China;2.Research Institute of Unmanned Aircraft;P.R.China |
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| Abstract: | A localization algorithm using distance and angle information is proposed in wireless sensor networks.Assuming that node axial orientations are unknown,all angles are measured to calculate the angle differences between two nodes viewed by the third one.Then,localization problems are formulated as convex optimization ones and all geometric relationships among different nodes in the communication range are transformed into linear or quadratic constraints.If all measurements are accurate,the localization probl... |
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| Keywords: | linear programming quadratic programming wireless sensor networks angle of arrival |
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