Underwater Vehicles

Underwater Vehicles

Author: Alexander Inzartsev

Publisher: BoD – Books on Demand

Published: 2009-01-01

Total Pages: 596

ISBN-13: 9537619494

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For the latest twenty to thirty years, a significant number of AUVs has been created for the solving of wide spectrum of scientific and applied tasks of ocean development and research. For the short time period the AUVs have shown the efficiency at performance of complex search and inspection works and opened a number of new important applications. Initially the information about AUVs had mainly review-advertising character but now more attention is paid to practical achievements, problems and systems technologies. AUVs are losing their prototype status and have become a fully operational, reliable and effective tool and modern multi-purpose AUVs represent the new class of underwater robotic objects with inherent tasks and practical applications, particular features of technology, systems structure and functional properties.


A High-Rate Virtual Instrument of Marine Vehicle Motions for Underwater Navigation and Ocean Remote Sensing

A High-Rate Virtual Instrument of Marine Vehicle Motions for Underwater Navigation and Ocean Remote Sensing

Author: Chrystel Gelin

Publisher: Springer Science & Business Media

Published: 2012-08-22

Total Pages: 113

ISBN-13: 3642320155

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Dead-Reckoning aided with Doppler velocity measurement has been the most common method for underwater navigation for small vehicles. Unfortunately DR requires frequent position recalibrations and underwater vehicle navigation systems are limited to periodic position update when they surface. Finally standard Global Positioning System (GPS) receivers are unable to provide the rate or precision required when used on a small vessel. To overcome this, a low cost high rate motion measurement system for an Unmanned Surface Vehicle (USV) with underwater and oceanographic purposes is proposed. The proposed onboard system for the USV consists of an Inertial Measurement Unit (IMU) with accelerometers and rate gyros, a GPS receiver, a flux-gate compass, a roll and tilt sensor and an ADCP. Interfacing all the sensors proved rather challenging because of their different characteristics. The proposed data fusion technique integrates the sensors and develops an embeddable software package, using real time data fusion methods, for a USV to aid in navigation and control as well as controlling an onboard Acoustic Doppler Current Profiler (ADCP). While ADCPs non-intrusively measure water flow, the vessel motion needs to be removed to analyze the data and the system developed provides the motion measurements and processing to accomplish this task.


Selected Papers from the 2018 IEEE International Workshop on Metrology for the Sea

Selected Papers from the 2018 IEEE International Workshop on Metrology for the Sea

Author: Attilio Di Nisio

Publisher: MDPI

Published: 2020-11-13

Total Pages: 224

ISBN-13: 3039284061

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This Special Issue is devoted to recent developments in instrumentation and measurement techniques applied to the marine field. ¶The sea is the medium that has allowed people to travel from one continent to another using vessels, even today despite the use of aircraft. It has also been acting as a great reservoir and source of food for all living beings. However, for many generations, it served as a landfill for depositing conventional and nuclear wastes, especially in its deep seabeds, and we are assisting in a race to exploit minerals and resources, different from foods, encompassed in it. Its health is a great challenge for the survival of all humanity since it is one of the most important environmental components targeted by global warming. ¶ As everyone may know, measuring is a step that generates substantial knowledge about a phenomenon or an asset, which is the basis for proposing correct solutions and making proper decisions. However, measurements in the sea environment pose unique difficulties and opportunities, which is made clear from the research results presented in this Special Issue.


Remote Sensing in Archaeology

Remote Sensing in Archaeology

Author: James R. Wiseman

Publisher: Springer Science & Business Media

Published: 2007-06-04

Total Pages: 550

ISBN-13: 0387444556

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Archaeology has been transformed by technology that allows one to ‘see’ below the surface of the earth. This work illustrates the uses of advanced technology in archaeological investigation. It deals with hand-held instruments that probe the subsurface of the earth to unveil layering and associated sites; underwater exploration and photography of submerged sites and artifacts; and the utilization of imaging from aircraft and spacecraft to reveal the regional setting of archaeological sites and to assist in cultural resource management.


Multiscale Hydrologic Remote Sensing

Multiscale Hydrologic Remote Sensing

Author: Ni-Bin Chang

Publisher: CRC Press

Published: 2012-03-23

Total Pages: 450

ISBN-13: 1000687279

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Multiscale Hydrologic Remote Sensing: Perspectives and Applications integrates advances in hydrologic science and innovative remote sensing technologies. Raising the visibility of interdisciplinary research on water resources, it offers a suite of tools and platforms for investigating spatially and temporally continuous hydrological variables and p


Developing Tsunami-Resilient Communities

Developing Tsunami-Resilient Communities

Author: E.N. Bernard

Publisher: Springer Science & Business Media

Published: 2005-08-11

Total Pages: 186

ISBN-13: 1402036078

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As the world grieves over the catastrophic loss of humanity from the 26 December 2004 tsunami, we must resolve to learn from nature’s lessons. This issue provides a framework and a set of tools to develop communities that are resilient to tsunami. This collection of papers represents a starting point on our new journey toward a safer world. The history of tsunami hazard mitigation tracks well with the history of destructive tsunamis in the United States. Following the 1946 Alaska g- erated tsunami that killed 173 people in Hawaii, the Paci?c Tsunami Warning Center was established in Hawaii by a predecessor agency to the National Oceanic and Atmospheric Administration (NOAA). Following the 1960 Chilean tsunami that killed 1,000 people in Chile, 61 in Hawaii, and 199 in Japan, the United States formed the Joint Tsunami Research E?ort (JTRE) and sta?ed the International Tsunami Information Center (ITIC) in Hawaii. JTRE was formed to conduct research on tsunamis while ITIC, sponsored by the United Nations, was formed to coordinate tsunami warning e?orts of the Paci?c Countries. Many research and mitigation e?orts were focused on the distant tsunami problem. Following the 1964 Alaskan t- nami that killed 117 in Alaska, 11 in California, and 4 in Oregon, the U. S. was confronted with the local tsunami problem. In response, the U. S. established the Alaska Tsunami Warning Center in Palmer, Alaska. In 1992, a Ms 7.


Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018)

Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018)

Author: K. Murali

Publisher: Springer

Published: 2019-01-16

Total Pages: 1048

ISBN-13: 9811331197

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This book comprises selected proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018), focusing on emerging opportunities and challenges in the field of ocean engineering and offshore structures. It includes state-of-the-art content from leading international experts, making it a valuable resource for researchers and practicing engineers alike.


Advances in Sonar Technology

Advances in Sonar Technology

Author: Sergio Silva

Publisher: BoD – Books on Demand

Published: 2009-02-01

Total Pages: 254

ISBN-13: 3902613483

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The demand to explore the largest and also one of the richest parts of our planet, the advances in signal processing promoted by an exponential growth in computation power and a thorough study of sound propagation in the underwater realm, have lead to remarkable advances in sonar technology in the last years.The work on hand is a sum of knowledge of several authors who contributed in various aspects of sonar technology. This book intends to give a broad overview of the advances in sonar technology of the last years that resulted from the research effort of the authors in both sonar systems and their applications. It is intended for scientist and engineers from a variety of backgrounds and even those that never had contact with sonar technology before will find an easy introduction with the topics and principles exposed here.