Littoral seafloor sensing and characterization using marine electromagnetics, optical imagery, and remotely and autonomously operated platforms

Gregory Schultz, Joe Keranen, Art Gleason, Nuno Gracias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Seafloor sensing in littoral environments is challenged by a combination of technical requirements related to the detection, georegistration, and confirmation or characterization of natural and man-made items on, or beneath the seafloor. Specifically, EM sensing from unmanned systems enables the positioning of array-based sensors directly over targets of interest in a wide range of littoral environments: from surf zone to benthic areas in 100's of meters of water. Targets include both anthropogenic objects such as marine archeology and salvage, infrastructure associated with undersea cables, seabed foundations for windfarms, and unexploded ordnance (UXO) and other munitions hazards as well as shallow natural and geologic objects such as freshwater lens, gas hydrates, mineral ore, and heterogeneous sediment deposits. In this paper, we present aspects of the design, development and testing of array configurations from testing and evaluations in littoral environments. This includes integration and testing with multiple remotely and autonomously operated swimming platforms (ROVs, AUVs, and hybrids). In particular, we demonstrate the deployment of an integrated system based on a hybrid autonomous underwater vehicle and comprising bottom following, station keeping, and waypoint mapping control, a multi-channel frequency-domain EM array, and multiple high resolution imaging sensors. Results from initial testing and pilot studies for UXO surveying, marine archeology, and seabed classification are summarized.

Original languageEnglish (US)
Title of host publicationOCEANS 2015 - MTS/IEEE Washington
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780933957435
DOIs
StatePublished - Feb 8 2016
EventMTS/IEEE Washington, OCEANS 2015 - Washington, United States
Duration: Oct 19 2015Oct 22 2015

Publication series

NameOCEANS 2015 - MTS/IEEE Washington

Other

OtherMTS/IEEE Washington, OCEANS 2015
Country/TerritoryUnited States
CityWashington
Period10/19/1510/22/15

Keywords

  • littoral sensing
  • marine electromagnetics
  • remotely operated vehicles
  • unexploded ordnance

ASJC Scopus subject areas

  • Signal Processing
  • Oceanography
  • Ocean Engineering
  • Instrumentation
  • Acoustics and Ultrasonics

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