文章摘要
李昊,张歆,张小蓟.水下网络移动节点分布式定位算法[J].声学技术,2011,(4):316~320
水下网络移动节点分布式定位算法
Distributed location algorithm of movable nodes of underwater networks
投稿时间:2010-07-13  修订日期:2010-10-19
DOI:
中文关键词: 水下网络  移动节点定位  分布式定位算法  三角法
英文关键词: underwater networks  movable node location  distributed location algorithm  trigonometry
基金项目:
作者单位E-mail
李昊 西北工业大学航海学院, 西安 710072 lhky6@163.com 
张歆 西北工业大学航海学院, 西安 710072  
张小蓟 西北工业大学航海学院, 西安 710072  
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中文摘要:
      随着水下网络系统的发展,水下移动节点的分布式定位技术的研究受到关注。提出了一种自组织、可容忍节点失效与测距误差、计算量和通信开销小的分布式水下节点定位算法,该算法利用自适应加权、循环三角组合测量法提高定位精度。对基于TOA测距的循环三角组合算法的定位精度进行了仿真,分析参考节点数对平均定位误差的影响,并与三边测量法的定位精度进行了比较。仿真结果表明,该算法具有较高的定位精度,对节点失效和测距误差的鲁棒性高,并且降低了水下网络对参考节点的密度要求。
英文摘要:
      As the development of underwater network systems,the distributed location techniques of underwater mov-able nodes receive much concern.A location algorithm for distributed underwater movable nodes,characterized by self-organization,tolerable node failures and the range of error,low complexity and low communication burden,is pro-posed in this paper.The algorithm utilizes adaptive weighting,and circulating composite triangulation method to improve the location accuracy.The paper simulates the location accuracy of this algorithm based on TOA ranging method,analyzes the influence of the number of reference nodes on location error,and compares with trilateration location algorithm.The results of simulation show its accuracy and robustness with respect to range measurement error and node failures,and low density of reference node.
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