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.
出处
《信息与控制》
CSCD
北大核心
2009年第1期125-128,共4页
Information and Control
关键词
信息处理技术
目标跟踪
纯方位
节点选择
information processing
target tracking
bearing-only
node selection
