Results 1 to 10 of about 346 (129)

Physics-Based Modelling and Simulation of Multibeam Echosounder Perception for Autonomous Underwater Manipulation

open access: yesFrontiers in Robotics and AI, 2021
One of the key distinguishing aspects of underwater manipulation tasks is the perception challenges of the ocean environment, including turbidity, backscatter, and lighting effects.
Derek R Olson, Olson Derek R
exaly   +3 more sources

USING A MULTIBEAM ECHOSOUNDER TO MONITOR AN ARTIFICIAL REEF [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Artificial reefs (ARs) have become popular technological interventions in shallow water environments characterized by soft seabed for a wide number of purposes, from fisheries/environmental protection and enhancement to research and tourism.
A. N. Tassetti, S. Malaspina, G. Fabi
doaj   +5 more sources

Comparison between the Employment of a Multibeam Echosounder on an Unmanned Surface Vehicle and Traditional Photogrammetry as Techniques for Documentation and Monitoring of Shallow-Water Cultural Heritage Sites: A Case Study in the Bay of Algeciras

open access: yesJournal of Marine Science and Engineering, 2023
Over the last few years, due to various climatic, anthropogenic, and environmental factors, a large amount of submerged heritage has been unearthed and exposed to deterioration processes in the Bay of Algeciras.
Joaquin Callejo Gomez   +2 more
exaly   +3 more sources

Nearshore Benthic Habitat Mapping Based on Multi-Frequency, Multibeam Echosounder Data Using a Combined Object-Based Approach: A Case Study from the Rowy Site in the Southern Baltic Sea

open access: yesRemote Sensing, 2018
Recently, the rapid development of the seabed mapping industry has allowed researchers to collect hydroacoustic data in shallow, nearshore environments.
Karolina Trzcińska   +2 more
exaly   +3 more sources

The Importance of Under-Keel Sound Velocity Sensor in Measuring Water Depth with Multibeam Echosounder

open access: yesEnergies, 2021
The basic and most commonly used application of modern multibeam echosounders (MBES) is the bathymetric survey. Surface sound velocity errors introduce errors on beam steering angles and consequently errors in depth and position values. Due to systematic
Artur Grządziel, Grządziel Artur
exaly   +3 more sources

Bathymetric analysis using multifrequency multibeam echosounder

open access: yesGeodesy and Cartography
Making a nautical chart for safe navigation is a bathymetric survey’s primary goal. Multifrequency MBES have been developed over the last few decades, and their introduction has dramatically improved the efficiency, accuracy, and spatial resolution of ...
Khomsin   +3 more
doaj   +2 more sources

Mems Technology Quality Requirements as Applied to Multibeam Echosounder

open access: yesPolish Maritime Research, 2018
Small, lightweight, power-efficient and low-cost microelectromechanical system (MEMS) inertial sensors and microcontrollers available in the market today help reduce the instability of Multibeam Sonars. Current MEMS inertial measurement units (IMUs) come
Bikonis Krzysztof, Demkowicz Jerzy
doaj   +2 more sources

Integrated Reconstruction of Late Quaternary Geomorphology and Sediment Dynamics of Prokljan Lake and Krka River Estuary, Croatia

open access: yesRemote Sensing, 2023
The upper part of the Krka River estuary and Prokljan Lake are a specific example of a well-stratified estuarine environment in a submerged river canyon.
Ozren Hasan   +5 more
doaj   +1 more source

Compression of Multibeam Echosounders Bathymetry and Water Column Data

open access: yesRemote Sensing, 2022
Over the past decade, Multibeam Echosounders (MBES) have become one of the most used techniques in sea exploration. Modern MBES are capable of acquiring both bathymetric information on the seafloor and the reflectivity of the seafloor and water column.
Aniol Martí   +6 more
openaire   +6 more sources

Visualisation of Multibeam Echosounder Measurement Data [PDF]

open access: yes, 2013
During a sea survey session performed using a multibeam echosounder millions of measurement points are generated. Sea surveys should be carried out in such a way, that the maximum accuracy of created seabed models (DTM) is achieved and the standards specified by the IHO S-44 guidelines are met. One of the requirements is so called full sea floor search,
Wojciech Maleika, Piotr Czapiewski
openaire   +3 more sources

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