First direct measurements of behavioural responses by Cuvier's beaked whales to mid-frequency active sonar [PDF]
Biology Letters, 2013 Most marine mammal strandings coincident with naval sonar exercises have involved Cuvier's beaked whales (Ziphius cavirostris). We recorded animal movement and acoustic data on two tagged Ziphius and obtained the first direct measurements of behavioural
Stacy DeRuiter +2 more
exaly +3 more sources
Mobile Robot Range Sensing through Visual Looming [PDF]
, 1998 This article describes and evaluates visual looming as a monocular range sensing method for mobile robots. The looming algorithm is based on the relationship between the displacement of a camera relative to an object, and the resulting change in the size
Gaudiano, Paolo, Sahin, Erol
core +4 more sources
Sperm whales reduce foraging effort during exposure to 1-2 kH z sonar and killer whale sounds [PDF]
, 2015 We would like to thank 3S partners and funders especially for enabling this research (NL Ministry of Defence, NOR Ministry of Defence, US Office of Naval Research, and World Wildlife Fund, Norway). PLT was supported by the Scottish Funding Council (grant
Alexander Lam, Frans-Peter +8 more
core +3 more sources
A Method for Field Calibration of a Multibeam Echo Sounder [PDF]
, 2011 The use of multibeam echo sounders (MBES) has grown more frequent in applications like seafloor imaging, fisheries, and habitat mapping. Calibration of these instruments is important for understanding and validating the performance of MBES.
Lanzoni, Carlo, Weber, Thomas C.
core +2 more sources
ARTMAP-FTR: A Neural Network For Fusion Target Recognition, With Application To Sonar Classification [PDF]
, 1998 ART (Adaptive Resonance Theory) neural networks for fast, stable learning and prediction have been applied in a variety of areas. Applications include automatic mapping from satellite remote sensing data, machine tool monitoring, medical prediction ...
Carpenter, Gail A. +2 more
core +2 more sources
AUV SLAM and experiments using a mechanical scanning forward-looking sonar [PDF]
, 2012 Navigation technology is one of the most important challenges in the applications of autonomous underwater vehicles (AUVs) which navigate in the complex undersea environment.
ArulamPalam +29 more
core +4 more sources
Transparent and scalable client-side server selection using netlets [PDF]
, 2003 Replication of web content in the Internet has been found to improve service response time, performance and reliability offered by web services. When working with such distributed server systems, the location of servers with respect to client nodes is ...
Collier, Martin, Dharmalingam, Kalaiarul
core +2 more sources
APES Beamforming Applied to Medical Ultrasound Imaging [PDF]
, 2009 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
Scattering statistics of rock outcrops: Model-data comparisons and Bayesian inference using mixture distributions [PDF]
, 2019 The probability density function of the acoustic field amplitude scattered by the seafloor was measured in a rocky environment off the coast of Norway using a synthetic aperture sonar system, and is reported here in terms of the probability of false ...
Anthony P. Lyons +16 more
core +2 more sources
Environmentally Adaptive Sonar Technology (EAST) project report for participation in the Littoral Warfare Advanced Development (LWAD) 99-3 experiment [PDF]
, 2000 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