Results 91 to 100 of about 228,033 (349)
Remote SensingSonar is a valuable tool for ocean exploration since it can obtain a wealth of data. With the development of intelligent technology, deep learning has brought new vitality to underwater sonar image classification.
Ye Peng +5 more
doaj +1 more source
Control System for the Navigation of the Agricultural Robots: A Review
Journal of Field Robotics, EarlyView.ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía +3 more
wiley +1 more source
Identification Algorithm of Uncertain Sonar Signals in Complex Marine Environment
Polish Maritime Research, 2017 The current identification algorithm using sonar signal parameters of bandwidth, frequency, duration and pulse waveform which are easy to detect and imitation, to identify the identity of sonar signal, resulting in part of the sonar signal identity is ...
Zhang Xuefeng
doaj +1 more source
In-Situ Far-Field Calibration of Multibeam Sonar Arrays for Precise Backscatter Imagery [PDF]
, 1996 Calibration of large hull-mounted sonar transducer arrays is usually done by measuring the performance of individual components in a test tank. Multiple transducer element beam patterns are superimposed and combined with window attenuation and other ...
de Moustier, Christian +3 more
core +1 more source
Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR
River Research and Applications, EarlyView.ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert +5 more
wiley +1 more source
Display aids for remote control of untethered undersea vehicles [PDF]
, 1978 A predictor display superimposed on slow-scan video or sonar data is proposed as a method to allow better remote manual control of an untethered submersible.
Verplank, W. L.
core +1 more source
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 +3 more sources
River Research and Applications, EarlyView.ABSTRACT Knowledge of habitat availability is critically important for the management and recovery of freshwater species. Quantifying habitat availability often requires fine‐scale sampling at point‐based locations across a large geographic extent, which can be laboursome.
Karl A. Lamothe +2 more
wiley +1 more source
Journal of Marine Science and Engineering, 2017 With the prospect to deploy hydrokinetic energy converters in areas with heavy boat traffic, a study was conducted to observe and assess the depth range of cavitating flow produced by ferryboats in narrow channels.
Francisco Francisco +3 more
doaj +1 more source
Efficient multibeam sonar calibration and performance evaluation [PDF]
, 2014 Quantitative applications of mobile multibeam sonar in aquatic ecology and fisheries require accurate and efficient in-tank calibration methodologies.
Brehmer, Patrice +4 more
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