WSNs目标跟踪中的节点组选择机制研究  

Node group selection scheme for target tracking in wireless sensor networks

作　　者：董齐芬[1] 盛蒙蒙[1] 

机构地区：[1]浙江警察学院计算机与信息技术系,浙江杭州310053

出　　处：《计算机时代》2015年第12期10-12,17,共4页Computer Era

基　　金：浙江警察学院自选类科研项目(20130631)

摘　　要：目标定位与跟踪是无线传感网(Wireless Sensor Networks,WSNs)的重要应用之一。由于WSNs通信资源及节点能量均受限,在目标定位跟踪应用中,通常选取目标附近共线度较低的三个节点对当前目标进行定位。文章首先通过仿真实验发现当前共线度定义中存在的问题,然后综合考虑节点间的距离及节点组与目标之间的距离等因素,提出了一种简单有效的节点组选择机制来提高目标定位跟踪的准确度。仿真实验表明,所提出的节点组选择机制能适应测距噪声较大的WSNs环境。Target tracking is one of the important applications resources in WSNs and node＇s energy are limited, it is usual to of wireless sensor networks （WSNs）. Since the communication select three non-collinear nodes which are close to the target to estimate the current location of the target. The problems in the existed definition of collinear degree are found through the simulation in this paper, considering the distance between nodes as well as the distance between node group and the target, a simple and effective node group selection scheme is proposed to improve the accuracy of target tracking. The simulation results show that the proposed node group selection scheme is robust to the environment with large ranging noisy.

关 键 词：无线传感网 目标跟踪 共线度 节点组选择 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]