Results 41 to 50 of about 225,239 (334)
Underwater Excavation Records Using Underwater Acoustic Survey: A Case Study in South Korea
Applied Sciences, 2021 The most effective method for surveying underwater archeological sites is visually identifying areas with relics or remains through diving surveys. However, during underwater excavations, it is difficult to obtain images in turbid water.
Young-Hyun Lee +3 more
doaj +1 more source
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
A Review of Underwater Mine Detection and Classification in Sonar Imagery
Electronics, 2021 Underwater mines pose extreme danger for ships and submarines. Therefore, navies around the world use mine countermeasure (MCM) units to protect against them.
Stanisław Hożyń
semanticscholar +1 more source
Sensor Modeling for Underwater Localization Using a Particle Filter
Sensors, 2021 This paper presents a framework for processing, modeling, and fusing underwater sensor signals to provide a reliable perception for underwater localization in structured environments.
Humberto Martínez-Barberá +2 more
doaj +1 more source
SensorsPropeller noise is the main source of ship-radiated noise. Extracting and analyzing the modulation characteristics from the propeller noise plays a crucial role in classifying and identifying vessel targets.
Ruizhe Zhang, Qingcui Wang, Shuanping Du
doaj +1 more source
Electronics, 2021 Side-scan sonar is widely used in underwater rescue and the detection of undersea targets, such as shipwrecks, aircraft crashes, etc. Automatic object classification plays an important role in the rescue process to reduce the workload of staff and ...
Q. Ge +5 more
semanticscholar +1 more source
Sensors, 2020 This paper proposes a solution for merging the measurements from two perpendicular profiling sonars with different beam-widths, in the context of underwater karst (cave) exploration and mapping.
Yohan Breux, Lionel Lapierre
doaj +1 more source
Establishing a Multibeam Sonar Evaluation Test Bed near Sidney, British Columbia [PDF]
, 2012 The Canadian Hydrographic Service (CHS), Naval Oceanographic Office (NAVOCEANO) and the Ocean Mapping Group of the University of New Brunswick (OMG) collaborated on establishing a multibeam sonar test bed in the vicinity of the Institute of Ocean ...
Beaudoin, Jonathan +3 more
core +2 more sources
Advanced Materials Technologies, EarlyView.We are reporting the first‐time investigation of DPP‐based Organic Field‐Effect Transistor (OFET) devices with high‐stability of signal response in both of ambient and aqueous conditions with PBS solution. ABSTRACT Diketopyrrolopyrrole (DPP)–based conjugated polymers show strong promise for electronic applications, including bioelectronic gas sensors ...
Chattarika Khamhanglit +6 more
wiley +1 more source
IET Radar, Sonar & NavigationThe classification and recognition of underwater targets by an active sonar system remain challenging and complex. Traditional methods have limited classification performance in time and spatially varying ocean channels.
Qingcui Wang +3 more
doaj +1 more source