Author: Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 344
Book Description
Oceans '89: Navigation, remote sensing, underwater vehicles
Author: Oceans '89: Navigation ; Remote sensing ; Underwater vehicles
Author: Oceans '89
Author: Oceans '89: Diving safety & physiology ; Ocean engineering
Author: Passive Microwave Research
Author: Ann M. BrennanPublisher:
ISBN:
Category : Glaciers
Languages : en
Pages : 152
Book Description
Oceans '89: Ocean pollution
Author: Oceans '89: Acoustics ; Arctic studies
Author: Undersea Vehicles and National Needs
Author: Committee on Undersea Vehicles and National NeedsPublisher: National Academies Press
ISBN: 0309588723
Category : Science
Languages : en
Pages : 114
Book Description
The United States faces decisions requiring information about the oceans in vastly expanded scales of time and space and from oceanic sectors not accessible with the suite of tools now used by scientists and engineers. Advances in guidance and control, communications, sensors, and other technologies for undersea vehicles can provide an opportunity to understand the oceans' influence on the energy and chemical balance that sustains humankind and to manage and deliver resources from and beneath the sea. This book assesses the state of undersea vehicle technology and opportunities for vehicle applications in science and industry. It provides guidance about vehicle subsystem development priorities and describes how national research can be focused most effectively.
A High-Rate Virtual Instrument of Marine Vehicle Motions for Underwater Navigation and Ocean Remote Sensing
Author: Chrystel GelinPublisher: Springer Science & Business Media
ISBN: 3642320155
Category : Technology & Engineering
Languages : en
Pages : 113
Book Description
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.
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