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移动水声异步网络自定位和时间同步联合的单向动态预测算法

高婧洁 王威 陈鹏 申晓红

高婧洁, 王威, 陈鹏, 申晓红. 移动水声异步网络自定位和时间同步联合的单向动态预测算法[J]. 电子与信息学报, 2022, 44(6): 2054-2060. doi: 10.11999/JEIT211363
引用本文: 高婧洁, 王威, 陈鹏, 申晓红. 移动水声异步网络自定位和时间同步联合的单向动态预测算法[J]. 电子与信息学报, 2022, 44(6): 2054-2060. doi: 10.11999/JEIT211363
GAO Jingjie, WANG Wei, CHEN Peng, SHEN Xiaohong. A One-way Prediction Based Joint Self-localization and Synchronization Algorithm for Mobile Underwater Acoustic Asynchronous Networks[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2054-2060. doi: 10.11999/JEIT211363
Citation: GAO Jingjie, WANG Wei, CHEN Peng, SHEN Xiaohong. A One-way Prediction Based Joint Self-localization and Synchronization Algorithm for Mobile Underwater Acoustic Asynchronous Networks[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2054-2060. doi: 10.11999/JEIT211363

移动水声异步网络自定位和时间同步联合的单向动态预测算法

doi: 10.11999/JEIT211363
基金项目: 国家自然科学基金(61901057,61871059),陕西省重点研发计划(2021KWZ-08)
详细信息
    作者简介:

    高婧洁:女,1988年生,讲师,研究方向为水声网络的目标探测与定位技术

    王威:男,1982年生,教授,研究方向为高分辨率时变参数追踪、联合通信与导航技术

    陈鹏:男,1992年生,讲师,研究方向为水声高分辨方位估计及波束形成技术

    申晓红:女,1965年生,教授,研究方向为水下无线通信、信号检测与信息处理技术

    通讯作者:

    高婧洁 gaojingj@chd.edu.cn

  • 中图分类号: TN929.3

A One-way Prediction Based Joint Self-localization and Synchronization Algorithm for Mobile Underwater Acoustic Asynchronous Networks

Funds: The National Natural Science Foundation of China (61901057, 61871059), The Key R & D Projects in Shaanxi Province (2021KWZ-08)
  • 摘要: 节点位置的实时变化以及水下长传输时延等特性影响了移动水声异步网络(MUAANs)的时间同步与自定位精度。针对上述问题,该文研究并提出一种自定位和时间同步联合的单向动态预测算法。该算法通过建立时间同步与自定位联合的状态与观测模型,同时预测不同时刻下移动节点的位置信息与时钟差异,实现网络的联合位置跟踪与动态时间同步。与此同时,由于该算法仅采用节点间的单向信息传输即可实现自定位与时间同步,有效解决了由水下长传输时延导致的移动节点间双向信息交互时延差异的问题,提高了网络的自定位与时间同步精度和效率。仿真结果表明,该文所提算法可以高精度地联合预测移动水声异步网络的自定位与时间同步结果,且有效增强了网络的时间同步与自定位时间效率。
  • 图  1  网络的结构模型

    图  2  网络节点的时钟模型

    图  3  本文所提算法示意图

    图  4  网络拓扑结构示意图

    图  5  移动节点定位结果

    图  6  移动节点时间频偏估计值

    图  7  移动节点时间漂移估计值

    图  8  各算法在不同采样点处的定位误差比较

    图  9  各算法在不同观测误差下的定位精度比较

    图  10  各算法时间效率分析

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出版历程
  • 收稿日期:  2021-11-30
  • 修回日期:  2022-03-30
  • 网络出版日期:  2022-04-14
  • 刊出日期:  2022-06-21

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