水声传感器网络节点定位技术综述

Survey on Node Localization Technology of Underwater Acoustic Sensor Networks

在水声传感器网络的应用中,只有当传感器节点的位置已知,获得的信息才具有意义.因此,节点定位技术是水声传感器网络研究的一个重点和热点.首先分析了在水声环境中的传感器网络节点定位技术的特点;在此基础上分类介绍了距离无关定位算法和距离相关定位算法,其中重点阐述和分析了距离相关算法的测距技术、基于固定锚节点算法和基于移动锚节点算法;最后总结并展望了水声传感器网络节点定位技术的发展与研究方向.

In the applications of UASNs（Underwater Acoustic Sensor Networks）,only when the sensor node′s location is known,the information obtained have meaning.Therefore,the node localization technology is the priorities and hot spots of research of UASNs.First,this paper is to analyze the characteristics of node localization technology in the underwater acoustic environment;then to introduce the classification of range-free and range-based localization algorithm,in which the ranging technology、fixed anchor node based algorithm and mobile anchor node based algorithm of range-based algorithm are focused on and analyzed;finally,the developing and researching direction of node localization technology of UASNs are summarized and foreseen.