Localization Using Ray Tracing for Underwater Acoustic Sensor Networks
Localization Using Ray Tracing for Underwater Acoustic Sensor Networks
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DOI：
10.1109/lcomm.2010.090810.101237
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发表时间：
2010-10-01
期刊：
影响因子：
--
通讯作者：
Jacob, Lillykutty
中科院分区：
文献类型：
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作者：
Ameer, P. M.;Jacob, Lillykutty
定位是大多数水下无线传感器网络（UWSNs）不可或缺的一部分。在这些网络中，通常使用声学测距信号。由于声速依赖于深度，射线在水中弯曲。这提出了一个独特的问题，使得传统的定位算法假设目标和锚节点之间的直线距离不准确。在这项工作中，作者提出了一个计划，考虑到弯曲的路径，在UWSNs提供一个准确的位置估计。该方法利用标准射线方程来模拟水中声射线的路径。使用该方案的初步研究的结果也报告。
Localization is an indispensable part for most Underwater Wireless Sensor Networks (UWSNs). In these networks, acoustic ranging signals are typically used. Because of the depth dependent sound speed, ray bends in water. This presents a unique problem making conventional localization algorithms assuming straight line distances between target and anchor nodes inaccurate. In this work, authors present a scheme that takes in to account bending of path, to provide an accurate location estimate in UWSNs. The approach makes use of standard ray equations to model the path followed by rays of sound in water. The results of the preliminary study using this scheme are also reported.