Current Search:  Underwater exploration (x)

View All Items

  • CSV Spreadsheet
(1 - 8 of 8)
Design and implementation of an altitude flight controller for the FAU Ocean Voyager II
Title
Design and implementation of an altitude flight controller for the FAU Ocean Voyager II.
Creator
White, Kevin Andrew., Florida Atlantic University, Smith, Samuel M., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
Autonomous underwater vehicle (AUV) missions are generally of a multi-tasked nature, i.e., there are usually several criteria which need to be met concurrently during the course of a mission. An example is the bottom altitude tracking mission proposed by the University of South Florida. They have developed a bottom classification and albedance package (BCAP) which will be used to record data to ground-truth oceanographic satellites. Two criteria needed for this mission are vehicle safety and...
Show moreAutonomous underwater vehicle (AUV) missions are generally of a multi-tasked nature, i.e., there are usually several criteria which need to be met concurrently during the course of a mission. An example is the bottom altitude tracking mission proposed by the University of South Florida. They have developed a bottom classification and albedance package (BCAP) which will be used to record data to ground-truth oceanographic satellites. Two criteria needed for this mission are vehicle safety and motion stability of the recording sensors. This thesis will respectively compare the results of three bottom altitude tracking controllers: a linear modification of an existing depth controller, a TSK fuzzy logic controller, and a behavior based decision controller. Aspects analyzed for meeting the criteria were the ability of the auv to avoid collisions with bottom, the ability of the auv to maintain a desired altitude above the sea floor, and the ability of the auv to keep the amount of blur in a picture taken by a downward looking camera under one pixel. From simulation and real world testing, final results indicate the behavioral based decision controller was proven to be the most robust and the only controller tested to be able to handle multi-criteria.
Show less
Date Issued
1996
PURL
http://purl.flvc.org/fcla/dt/15236
Subject Headings
Remote submersibles, Underwater navigation, Underwater exploration, Altitudes--Measurement, Oceanographic submersibles--Design
Format
Document (PDF)
Multi-aspect imaging of cylindrical targets using a wide aperture FM sonar
Title
Multi-aspect imaging of cylindrical targets using a wide aperture FM sonar.
Creator
Rivalan, Gregory., Florida Atlantic University, Schock, Steven G.
Abstract/Description
The purpose of the thesis is to investigate a multi-aspect reflection technique to generate 3D images of buried cylinders using the Buried Object Scanning Sonar (BOSS). Target imagery is constructed using a sequence of acoustic echoes generated as the sonar approaches and passes the buried target. However, for the sake of simplicity, the influence of the sediment on the scattering field will not be considered. This thesis investigates the multi-aspect technique by generating synthetic images...
Show moreThe purpose of the thesis is to investigate a multi-aspect reflection technique to generate 3D images of buried cylinders using the Buried Object Scanning Sonar (BOSS). Target imagery is constructed using a sequence of acoustic echoes generated as the sonar approaches and passes the buried target. However, for the sake of simplicity, the influence of the sediment on the scattering field will not be considered. This thesis investigates the multi-aspect technique by generating synthetic images of cylindrical targets to determine both the best method and the sonar parameters for reconstructing the shape of an elastic cylinder. Recommendations for deploying BOSS-252 and setting sonar parameters are provided based on quantitative measurements of the simulated images of cylindrical targets.
Show less
Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/13268
Subject Headings
Three-dimensional display systems, Sonar, Sound-waves--Scattering, Underwater acoustics, Underwater exploration
Format
Document (PDF)
CORD II - an ROV system for use in high current conditions
Title
CORD II - an ROV system for use in high current conditions.
Creator
Clayton, David L., Prentice, Jeffrey R., Tietze, R. C.
Date Issued
1983
PURL
http://purl.flvc.org/fcla/dt/3358782
Subject Headings
Remote submersibles, Remote submersibles--Design and construction, Underwater exploration
Format
Document (PDF)
Connectivity of the Pulley Ridge - South Florida Coral Reef Ecosystem:Processes to Decision-Support Tools
Title
Connectivity of the Pulley Ridge - South Florida Coral Reef Ecosystem:Processes to Decision-Support Tools.
Creator
Farrington, Stephanie, Reed, John K., Hanisak, M. Dennis, Harbor Branch Oceanographic Institute
Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00007509
Subject Headings
Pulley Ridge, Coral reef ecology--Florida, Underwater exploration
Format
Document (PDF)
Characterization of the Mesophotic Benthic Habitat and Fish Assemblagesfrom ROV Dives on Pulley Ridge and Tortugas during 2012 and 2013 R/V Walton SmithCruises
Title
Characterization of the Mesophotic Benthic Habitat and Fish Assemblagesfrom ROV Dives on Pulley Ridge and Tortugas during 2012 and 2013 R/V Walton SmithCruises.
Creator
Farrington, Stephanie, Reed, John K., Moe, Heather, Harter, Stacey, Hanisak, M. Dennis, David, Andrew, Harbor Branch Oceanographic Institute
Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00007508
Subject Headings
Pulley Ridge, Dry Tortugas (Fla.), Underwater exploration, Benthos Habitat, Coral communities, Fish populations
Format
Document (PDF)
South Atlantic MPAs and Deepwater Coral HAPCs: Characterization of Benthic Habitat and Fauna
Title
South Atlantic MPAs and Deepwater Coral HAPCs: Characterization of Benthic Habitat and Fauna.
Creator
Harter, Stacey, David, Andrew, Reed, John K., Harbor Branch Oceanographic Institute
Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00007507
Subject Headings
Marine parks and reserves, Deep sea corals, Benthos Habitat, Benthic animals, Underwater exploration
Format
Document (PDF)
South Atlantic MPAs and Deepwater Coral HAPCs: Characterization of Benthic Habitat and Fauna
Title
South Atlantic MPAs and Deepwater Coral HAPCs: Characterization of Benthic Habitat and Fauna.
Creator
Harter, Stacey, David, Andrew, Reed, John K., Harbor Branch Oceanographic Institute
Date Issued
2013
PURL
http://purl.flvc.org/fau/fd/FA00007506
Subject Headings
Marine parks and reserves, Deep sea corals, Benthos Habitat, Benthic animals, Underwater exploration
Format
Document (PDF)
South Atlantic MPAs and Deepwater Coral HAPCs:Characterization of Benthic Habitat and FaunaNOAA Ship Pisces Cruise 12-03UNCW Super Phantom ROVJuly 6-19, 2012
Title
South Atlantic MPAs and Deepwater Coral HAPCs:Characterization of Benthic Habitat and FaunaNOAA Ship Pisces Cruise 12-03UNCW Super Phantom ROVJuly 6-19, 2012.
Creator
Reed, John K., Harter, Stacey, Farrington, Stephanie, David, Andrew, Harbor Branch Oceanographic Institute
Date Issued
2013
PURL
http://purl.flvc.org/fau/fd/FA00007505
Subject Headings
Marine parks and reserves, Deep sea corals, Benthos Habitat, Benthic animals, Underwater exploration
Format
Document (PDF)