Results 21 to 30 of about 20,891 (205)

Marine Internet of Things Platforms for Interoperability of Marine Robotic Agents: An Overview of Concepts and Architectures

Journal of Marine Science and Engineering, 2022
The creation of a Marine Internet of Things platform, including the Underwater Internet of Things, is needed to ensure the interaction and digital navigation of heterogeneous marine robotic agents. It is necessary to combine the following robotic agents:
Aleksey Kabanov, Vadim Kramar
doaj   +1 more source

Acoustical characteristic predictions of a multi-layer system of a submerged vehicle hull mounted sonar simplified to an infinite planar model

International Journal of Naval Architecture and Ocean Engineering, 2012
Hull Mounted Sonar (HMS) is a long range submerged vehicle's hull-mounted passive sonar system which detects low-frequency noise caused by machineries of enemy ships or submerged vehicles.
Sung-Hee Kim, Suk-Yoon Hong, Jee-Hun Song, Hyun-Gwon Kil, Jae Jin Jeon, Young-Soo Seo   +5 more
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Underwater Acoustic Research Trends with Machine Learning: Passive SONAR Applications

한국해양공학회지, 2020
Underwater acoustics, which is the domain that addresses phenomena related to the generation, propagation, and reception of sound waves in water, has been applied mainly in the research on the use of sound navigation and ranging (SONAR) systems for ...
Haesang Yang, Keunhwa Lee, Youngmin Choo, Kookhyun Kim   +3 more
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Passive sonar automated target classifier for shallow waters using end-to-end learnable deep convolutional LSTMs

Engineering Science and Technology, an International Journal, 2021
Automated target recognition systems are increasingly employed in sonar systems to reduce manning and associated challenges. Although passive acoustic target recognition is an exceptionally challenging endeavor especially in shallow water scenarios, it ...
Suraj Kamal, C. Satheesh Chandran, M.H. Supriya   +2 more
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Tracking the Tracker from its Passive Sonar ML-PDA Estimates [PDF]

, 2013
Target motion analysis with wideband passive sonar has received much attention. Maximum likelihood probabilistic data-association (ML-PDA) represents an asymptotically efficient estimator for deterministic target motion, and is especially well-suited for
Bar-Shalom, Y., Ciuonzo, D., Willett, P. K.   +2 more
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WiFi-based PCL for monitoring private airfields [PDF]

, 2017
In this article, the potential exploitation of WiFi-based PCL systems is investigated with reference to a real-world civil application in which these sensors are expected to nicely complement the existing technologies adopted for monitoring purposes ...
BONGIOANNI, CARLO, COLONE, Fabiola, LOMBARDO, Pierfrancesco, MARTELLI, TATIANA, PASTINA, Debora   +4 more
core   +1 more source

Acoustic Performance Prediction of Undersea Vehicles

水下无人系统学报, 2023
With the development of deep-sea fishing and marine ranching, the impact of undersea radiation noise of vehicles on marine organisms such as fish cannot be ignored .
Xiaohan FU, Xuezhi FU, Minqing WANG
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Return of Sound Production as a Biomarker of Bottlenose Dolphin Emergence from Anesthesia

Animals, 2023
(1) Background: When a human or animal is recovering from general anesthesia, their medical team uses several behavioral and physiological parameters to assess their emergence from the unconscious state to complete wakefulness.
Brittany L. Jones, Abby M. McClain, Jessica J. Sportelli, Carolina Ruiz Le-Bert   +3 more
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Batch Processing through Particle Swarm Optimization for Target Motion Analysis with Bottom Bounce Underwater Acoustic Signals

Sensors, 2020
A target angular information in 3-dimensional space consists of an elevation angle and azimuth angle. Acoustic signals propagating along multiple paths in underwater environments usually have different elevation angles.
Raegeun Oh, Taek Lyul Song, Jee Woong Choi   +2 more
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Estimation on the Underwater Explosion Equivalent Based on the Threshold Monitoring Technique

Shock and Vibration, 2021
Underwater nuclear explosions can be monitored in near real-time by the hydroacoustic network of the International Monitoring System (IMS) established by the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which could also be used to monitor underground ...
Yan Wang, Xiaoming Wang, Zhehan Liu, Wei Tang, Jian Li, De Nan, Shiya Zou   +6 more
doaj   +1 more source