Results 41 to 50 of about 163,397 (237)
Detection Range of Intercept Sonar for CWFM Signals
Archives of Acoustics, 2014 Stealth in military sonars applications may be ensured through the use of low power signals making them difficult to intercept by the enemy. In recent years, silent sonar design has been investigated by the Department of Marine Electronic Systems of the ...
Jacek MARSZAL, Roman SALAMON
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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
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Coupling of Dual Channel Waveform ALS and Sonar for Investigation of Lake Bottoms and Shore Zones
Remote Sensing, 2021 In this work, we proposed to include remote sensing techniques as a part of the methodology for natural lake bottom mapping, with a focus on the littoral zone.
Jarosław Chormański +5 more
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Use of high resolution sonar for near-turbine fish observations (DIDSON) - We@Sea 2007-002 [PDF]
, 2010 In this study we investigate small scale distribution of pelagic fish within a windfarm by means of a high resolution sonar (DIDSON, Dual frequency IDentification SONar; Soundmetrics).
Burggraaf, D. +5 more
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Uncertainty assessment for a novel optically shallow water radiometric acquisition platform
Limnology and Oceanography: Methods, EarlyView.Abstract We present a novel motorized platform, a custom‐built jet‐ski designed for acoustic and radiometric measurements in optically shallow coastal waters. This platform integrates in‐water radiometers with single‐beam and multi‐beam acoustic sensors, along with a suite of active and passive instruments (conductivity‐temperature‐depth, fluorescence,
Raphaël Mabit +2 more
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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
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Protocols for calibrating multibeam sonar [PDF]
, 2005 Development of protocols for calibrating multibeam sonar by means of the standard-target method is documented. Particular systems used in the development work included three that provide the water-column signals, namely the SIMRAD SM2000/90- and 200-kHz ...
Baldwin, Kenneth +6 more
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Quarterly Journal of the Royal Meteorological Society, EarlyView.We document for the first time how the assimilation of CS2SMOS observations improves the model representation of Arctic sea‐ice thickness (SIT) and its variability: biases are reduced (top row), while excessive variability in the Beaufort Sea and lack of variability in the ice pack are both corrected (bottom row).
Jiping Xie +3 more
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Remote SensingThe multimode underwater acoustic communication network is a novel form of underwater acoustic communication that adjusts its communication mode to enhance overall performance.
Chao Wang +3 more
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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
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