局部坐标系下移动无线传感器节点协同定位研究

Research on Positioning of Mobile Wireless Sensor Network in Local Coordinate System

针对移动的无线传感器网络中的基于方向测量的节点定位问题,分析了二维空间中局部坐标系下的移动自由节点和全局坐标系下的移动锚节点之间在固定时间间隔下,通过测量和通信完成自由节点定位的问题。通过自由节点之间互相局部协同定位,提出移动自由节点在二维空间中的定位的充分条件,并设计了一种移动自由节点定位的算法,通过数值仿真验证了该算法的有效性。

This paper aims at the problem of node positioning based on orientation measurement in mobile wireless sensor networks.It analyzes the problem of free node positioning through measurement and communication between the mobile free node in the local coordinate and the mobile anchor node in the global coordinate in the two-dimensional space.Through the local coordinated positioning between free nodes,a sufficient condition for mobile free nodes to be located in two-dimensional space is proposed,and the effectiveness of the algorithm is verified by numerical simulation.