锚节点水面部署的三维水下传感网定位算法
Localization Algorithm for 3-D Underwater Wireless Sensor Networks with Surface-deployed Anchors
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摘要: 受应用条件制约, 水下三维传感网的锚节点很多时候只能水面部署, 这对于多跳定位算法而言是一种挑战.由此提出一种从水面向下逐级迭代求精的定位策略, 防止了下级的定位误差向上扩散, 并利用水下节点易测的深度信息对定位中的多边迭代进行约束, 进一步补偿锚节点部署不均带来的各向异性.Abstract: Due to technical limitations, mostly the anchor nodes can only be deployed at the ocean surface in underwater wireless sensor networks.This is a challenge to multi hop underwater localization.In this paper, we proposed a top-down layer by layer iterated scheme, and used depth information, which is easy accessed in underwater environment, to remedy the anisotropy caused by surfaced anchors.
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