无线传感器网络三维节点的可行域定位

摘要

A three dimensional localization method for wireless sensor network is introduced.The algorithm collects the communication information between the unknown nodes and the anchor nodes.By comparing communication vectors between them,the minimized feasible region is established,and consider the centroid of the minimized feasible region as the estimated position of the unknown node.Algorithm design is simple and requires no additional hardware support.Simulation results show that the proposed algorithm has a high positioning accuracy which has improved the accuracy more than 50 ％ compared with the APIT-3D algorithm.%提出了一种无线传感器网络节点的三维定位方法.该算法首先收集未知节点与锚节点间的通信信息,通过未知节点与比对节点通信向量的比对建立极小可行域,然后用极小可行域质心作为未知节点位置的估计.算法设计简单,不需要额外硬件支持.仿真结果显示,该算法有着较高的定位精度,与APIT-3D算法相比定位精度提高50％以上.