Results 31 to 40 of about 48,682 (230)
Experimental research has shown that beaked whales exhibit strong avoidance reactions to naval active sonars used during antisubmarine warfare training exercises, including cessation of echolocation and foraging activity.
Joy E. Stanistreet +5 more
doaj +1 more source
This paper presents a comprehensive overview of current deep-learning methods for automatic object classification of underwater sonar data for shoreline surveillance, concentrating mostly on the classification of vessels from passive sonar data and the ...
Lucas C. F. Domingos +4 more
doaj +1 more source
Region-enhanced passive radar imaging [PDF]
The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat +2 more
core +1 more source
Discovery and mapping of the Triton seep site, Redondo Knoll: fluid flow and microbial colonization within an oxygen minimum zone [PDF]
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Wagner, J. K. S., Smart, C., & German, C. R.
German, Christopher R. +2 more
core +1 more source
A novel and comprehensive 3D‐resolved kinetic Monte Carlo model coupled with mean square displacement analysis is introduced. This computational approach allows to explore, for the first time, the concentration and the state of charge effects on ionic diffusion coefficient and viscosity in methyl viologen‐based electrolytes used in organic redox flow ...
Jia Yu +2 more
wiley +1 more source
Active sonar systems are used in the detection and localization of underwater targets. While traditional approaches use pulsed active sonar (PAS) to transmit short bursts, high duty cycle (HDC) sonar systems have been the focus of recent research and can
Geunhwan Kim +3 more
doaj +1 more source
Environmentally Adaptive Sonar Technology (EAST) project report for participation in the Littoral Warfare Advanced Development (LWAD) 99-3 experiment [PDF]
Prepared for: Littoral Warfare Advanced Development (LWAD) ProgramThe objective of the Environmentally Adaptive Sonar Technology (EAST) project is to develop approaches to improve shallow water target detection for Navy active sonar systems.
Shipley, Mitchell N.
core
Target-depth estimation in active sonar
International audienceIn active sonar, the objectives are to detect, localize and classify an underwater target. Azimuth and range are often used in anti-submarine warfare to localize targets.
Doisy, Yves +4 more
core +4 more sources
APES Beamforming Applied to Medical Ultrasound Imaging [PDF]
As of today, sonar imaging is the most effective means of documenting the subsea environment. Existing sonar imaging systems generally rely on conventional beamforming methods to form the image.
Austeng, Andreas +5 more
core +2 more sources
ABSTRACT Despite more than 20 years of research into sustainable tourism, the environmental impact of the UK hospitality sector remains high. A growing body of research into the concept of a circular economy (CE) demonstrates that transitioning to this way of working has significant benefits both for the environment and business outcomes.
Danielle Farrow +2 more
wiley +1 more source

