Local node selection for target tracking based on underwater wireless sensor networks

Local node selection for target tracking based on underwater wireless sensor networks
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基于水下无线传感器网络的目标跟踪局部节点选择

DOI:
10.1080/00207721.2014.880199
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发表时间:
2015-12
影响因子:
4.3
通讯作者:
Zhang, Senlin
Zhang, Senlin
中科院分区:
计算机科学4区
文献类型:
--
作者:
Liu, Meiqin;Liu, Meiqin;Zhang, Senlin;Zhang, Senlin

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传统的基于声纳阵列的目标跟踪算法可能不适合于按需跟踪任务,因为它们假设声纳阵列应该由潜艇或船舶拖曳或安装。另外,水下无线传感器网络可以提供一个有前途的解决方案。首先,每个水下节点都是电池供电的,因此节省能源支出是一个关键问题。本文提出了一种局部节点选择(LNS)方案,该方案通过每次只唤醒一小部分节点来提高能量效率,而不是保持所有传感器节点处于活动状态。其次,考虑到节点的计算能力有限和跟踪算法的实时性要求,而不是采用集中式融合结构,我们利用分布式反馈卡尔曼滤波融合在本文中。最后,提出了一种更实用的纯距离测量模型,而不是假设一个传感器节点可以唯一确定目标的位置。然后,LNS方案和分布式融合与反馈扩展到我们的距离只有测量模型。仿真结果证明了该方案的有效性。
Traditional sonar-array-based target tracking algorithms may be unsuitable for on-demand tracking missions, since they assume that the sonar arrays should be towed or mounted by a submarine or a ship. Alternatively, underwater wireless sensor networks can offer a promising solution approach. First, each underwater node is battery-powered, so saving energy expenditure is a critical issue. Instead of keeping all sensor nodes active, this paper provides a local node selection (LNS) scheme which increases energy efficiency by waking up only a small part of nodes at each time. Second, considering node's limited computing ability and the real-time requirement for the tracking algorithm, instead of employing the centralised fusion structure, we utilise the distributed Kalman filtering fusion with feedback in this paper. Finally, instead of assuming one sensor node can uniquely determine target's location, a more practical range-only measurement model is proposed. Then the LNS scheme and distributed fusion with feedback are extended to our range-only measurement model. The simulation results demonstrate the efficiency of our scheme.
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