水下声传感器网络中的移动信标定位。

Localization with a mobile beacon in underwater acoustic sensor networks.

机构信息

School of Information and Mechatronics, Department of Nanobio Materials and Electronics, WCU, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-Gu, Gwangju 500-712, Korea.

出版信息

Sensors (Basel). 2012;12(5):5486-501. doi: 10.3390/s120505486. Epub 2012 Apr 27.

DOI:10.3390/s120505486

PMID:22778597

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3386696/

Abstract

Localization is one of the most important issues associated with underwater acoustic sensor networks, especially when sensor nodes are randomly deployed. Given that it is difficult to deploy beacon nodes at predetermined locations, localization schemes with a mobile beacon on the sea surface or along the planned path are inherently convenient, accurate, and energy-efficient. In this paper, we propose a new range-free Localization with a Mobile Beacon (LoMoB). The mobile beacon periodically broadcasts a beacon message containing its location. Sensor nodes are individually localized by passively receiving the beacon messages without inter-node communications. For location estimation, a set of potential locations are obtained as candidates for a node's location and then the node's location is determined through the weighted mean of all the potential locations with the weights computed based on residuals.

摘要

定位是与水下声传感器网络相关的最重要的问题之一，尤其是在传感器节点随机部署的情况下。由于很难在预定位置部署信标节点，因此在海面上或沿预定路径使用移动信标进行定位的方案具有固有便利性、准确性和节能性。在本文中，我们提出了一种新的基于移动信标的无距离定位（LoMoB）方法。移动信标周期性地广播包含其位置的信标消息。传感器节点通过被动接收信标消息而无需节点间通信来实现单独定位。对于位置估计，获得一组潜在位置作为节点位置的候选位置，然后通过基于残差计算的权重对所有潜在位置的加权平均值来确定节点的位置。