无线传感器网络中目标定位的节点选择策略  

Node Selection Strategy for Target Localization in Wireless Sensor Networks

作　　者：邓克波[1] 刘中[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《信息与控制》2009年第1期125-128,共4页Information and Control

摘　　要：提出一种利用无线传感器网络定位目标时的节点选择策略.在综合考虑节点测量误差和节点坐标误差的基础上,推出根据不同节点组合估计目标位置时的均方根误差,并以此作为衡量指标选择最优的节点组合参与目标定位.仿真结果表明,与传统节点选择方法相比,本文方案在选择相同数目节点的前提下提高了目标定位精度.A node selection scheme is proposed for target localization with wireless sensor networks （WSNs）. With both node measurement error and coordinate error taken into consideration, the root mean square error of target location estimation with different node sets is deduced, and then is used as the evaluation metric to select the optimal node set to carry out target location. Simulated results show that, compared with the traditional node selection schemes, the proposed scheme improves the target localization accuracy with the same number of nodes.

关 键 词：信息处理技术 目标跟踪 纯方位 节点选择 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]