A better way to navigate on deep sea floors

Proceedings of OCEANS '93 Pub Date : 1993-10-18 DOI:10.1109/OCEANS.1993.326146

F. Parthiot, J. Denis

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引用次数: 15

Abstract

IFREMER-French Institute for Sea Exploration and Exploitation-is currently operating manned submersibles, towed sonars and ROVs down to 6000 m. IFREMER are replacing their positioning system resting on long base line (LBL) by a new positioning system called POSIDONIA which is under development at the company group Thomson Sintra ASM and Mors Environment. This replacement aims to reduce operators time and overall costs by improving accuracy, reliability and flexibility in comparison with the existing systems. To achieve these characteristics, the POSIDONIA positioning system is of a new breed which combines a short base line (SBL) and an ultra short base line (USBL). It has been designed to operate in noisy environments and get rid of multipath effects, to compensate for the lack of precise radio navigation, and generally to comply with the various task requirements. Therefore, not only has the acoustic signal processing been optimized, but also the beacon functionalities to give full versatility. In addition, the need of a high precision vertical and heading reference unit (VHRU), to make up for the vessel attitude, has induced the definition of a hybrid VHRU based on both GPS and inertial sensors.<>

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这是在深海中更好的导航方式

法国海洋勘探与开发研究所(ifremer)目前正在操作水下6000米的载人潜水器、拖曳声纳和rov。IFREMER正在用一种名为POSIDONIA的新定位系统取代他们基于长基线(LBL)的定位系统，该系统正在Thomson Sintra ASM和Mors Environment公司集团开发中。与现有系统相比，该替代方案旨在通过提高准确性、可靠性和灵活性，减少操作人员的时间和总体成本。为了实现这些特性，POSIDONIA定位系统是一个新品种，它结合了短基线(SBL)和超短基线(USBL)。它的设计是为了在嘈杂的环境中工作，摆脱多径效应，弥补精确无线电导航的不足，并总体上符合各种任务要求。因此，不仅对声信号处理进行了优化，而且对信标功能进行了优化，使信标功能具有充分的通用性。此外，由于需要高精度的垂直和航向参考单元(VHRU)来弥补船舶的姿态，导致了基于GPS和惯性传感器的混合VHRU的定义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of OCEANS '93

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