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首页> 外文期刊>Gyroscopy and navigation >Underwater Acoustic Modems with Synchronous Chip-Scale Atomic Clocks for Scalable Tasks of AUV Underwater Positioning
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Underwater Acoustic Modems with Synchronous Chip-Scale Atomic Clocks for Scalable Tasks of AUV Underwater Positioning

机译：水下声学调制解调器具有同步芯片尺度原子钟，可用于AUV水下定位的可扩展任务

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摘要

Accurate time synchronization of the nodes of digital underwater acoustic (UWA) networks is necessary for the effective use of information obtained from various kinds of underwater sensors over a vast water area. The sensors of autonomous underwater vehicles (AUV) are widely used to address new challenges. One of them is time synchronization of sensors on mobile carriers, as well as synchronization of the clocks on mobile nodes of UWA networks, for example, teams of AUVs that perform coordinated and/or cooperated operations. The paper presents theresults of the experiments on using UWA modems for AUV positioning, namely, UWA modems with chip-scale atomic clocks (CSAC) that allow accurate measurements of delays in propagation of UWA signals and, thus, accurate estimation of ranges to their georeferenced sources. In addition, the accuracy of CSAC operation in various situations as well as positioning accuracy of AUVs having UWA modems with integrated CSACs are analyzed based on the experimental results. Also given are practical recommendations on how to "discipline" (steer) CSACs and provide their phase synchronization with a source of timekeeping signals.
机译：数字水下声学（UWA）网络的节点的精确时间同步是有效使用从庞大的水域上从各种水下传感器获得的信息。自主水下车辆（AUV）的传感器被广泛用于解决新的挑战。其中一个是移动载波上的传感器的时间同步，以及UWA网络的移动节点上的时钟的同步，例如，执行协调和/或合作操作的AUV团队。本文介绍了使用UWA调制解调器进行AUV定位的实验的实验，即使用芯片尺度原子钟（CSAC）的UWA调制解调器，其允许精确测量UWA信号传播中的延迟，从而准确地估计其地理范围的范围来源。此外，基于实验结果，分析了各种情况下的CSAC操作的准确性以及具有与集成CSAC的UWA调制解调器的AUV的定位精度。还给出了关于如何“纪律”（转向）CSAC的实用建议，并与计时信号的来源提供相位同步。

著录项

  • 来源
    《Gyroscopy and navigation》 |2019年第4期|313-321|共9页
  • 作者

    K. G. Kebkal; A. G. Kebkal; E. V. Glushko; V. K. Kebkal; L. Sebastiao; A. Pascoal; J. Ribeiro; H. Silva; M. Ribeiro; G. Indiveri;

  • 作者单位

    Evologics GmbH Berlin Germany;

    Evologics GmbH Berlin Germany;

    Evologics GmbH Berlin Germany;

    Evologics GmbH Berlin Germany;

    Laboratory of Robotics and Engineering Systems (LARSyS) Institute for Systems and Robotics (ISR) Instituto Superior Tecnico (IST) University of Lisbon Portugal IST-ID Lisbon Portugal;

    Laboratory of Robotics and Engineering Systems (LARSyS) Institute for Systems and Robotics (ISR) Instituto Superior Tecnico (IST) University of Lisbon Portugal IST-ID Lisbon Portugal;

    Laboratory of Robotics and Engineering Systems (LARSyS) Institute for Systems and Robotics (ISR) Instituto Superior Tecnico (IST) University of Lisbon Portugal IST-ID Lisbon Portugal;

    Laboratory of Robotics and Engineering Systems (LARSyS) Institute for Systems and Robotics (ISR) Instituto Superior Tecnico (IST) University of Lisbon Portugal IST-ID Lisbon Portugal;

    Laboratory of Robotics and Engineering Systems (LARSyS) Institute for Systems and Robotics (ISR) Instituto Superior Tecnico (IST) University of Lisbon Portugal IST-ID Lisbon Portugal;

    The University of Salento Department of Innovation Engineering Lecce Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    AUV; underwater acoustic (UWA) positioning; UWA communications; UWA sensor network; UWA modem; UWA network;

    机译：AUV;水下声学（UWA）定位;UWA通讯;UWA传感器网络;UWA调制解调器;UWA网络;

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