Results 181 to 190 of about 5,551 (222)
Uncrewed undersea vehicle embedded autonomous target recognition in synthetic aperture sonar imagery
The Journal of the Acoustical Society of America, 2023 The opacity of the ocean to electromagnetic signals makes communication with Uncrewed Undersea Vehicles (UUVs) extremely difficult, especially for situations where the vehicle is operating far from its center of command and control, and makes mid-operation data exfiltration for external processing untenable.
Bryan D. Todd +2 more
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Signal Processing and Data Fusion for Autonomous Undersea Vehicles
Proceedings of the 6th International Symposium on Unmanned Untethered Submersible Technology,, 2005 The strategic and tactical applications for autonomous submersibles place great demands on the platforms' passive sonar signal and data processing abilities. It is necessary to overcome the limited acoustic aperture and lack of human supervision by exploiting synergism between front-end signal processing functions and back-end data fusion algorithms ...
J.W. Irza, M.N. Desai
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The AUSI/IMTP solar powered autonomous undersea vehicle
IEEE Oceanic Engineering Society. OCEANS'98. Conference Proceedings (Cat. No.98CH36259), 2002 If we are to understand the impact of the world's oceans on our environment, we must gather data with which to understand that impact. Low cost, unmanned, long endurance mobile sampling systems are, in many cases, a desirable alternative to the currently used, oceanographic research vessels requiring large investments in manpower and equipment, or by ...
R. Blidberg, J. Jalbert, M.D. Ageev
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An integrated computational model of an autonomous, visually guided undersea vehicle
Proceedings of 1994 3rd IEEE International Workshop on Robot and Human Communication, 2002 This paper reports progress made on the development of a computational model of a visually guided autonomous underwater vehicle. The model is based on knowledge obtained from laboratory studies in psychophysics and neurophysiology as well as on new developments in computer science.
William R. Uttal
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Volume 1: Acoustics, Vibration, and Phononics, 2022 Abstract This paper presents the development of an Autonomous Undersea Vehicle (AUV) that is capable of an acoustically stealth delivery of a payload. The payload is composed of a black box noise maker and the goal of this “stealth mission” is to minimize the amplitude of the acoustic signal emitting from the noise maker ...
Matthew Cunha +5 more
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Planning and world modeling for autonomous undersea vehicles
Proceedings IEEE International Symposium on Intelligent Control 1988, 2003 The planning and world modeling components of the MAUV (multiple autonomous undersea vehicles) architecture are described, with a focus on requirements for navigation of the MAUV vehicles. The goal of the MAUV project is to have multiple undersea vehicles exhibiting intelligent, autonomous, cooperative behavior.
M. Herman +4 more
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, 2023 Deep Reinforcement Learning (RL) shows promising results for control problems with continuous action spaces. A drawback to Deep RL is that it can be very computationally intensive; this is particularly concerning when considering fielding Deep RL applications on computational and power-constrained edge computing hardware typically implemented onboard ...
Christopher Hixenbaugh
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Underwater docking of autonomous undersea vehicles using optical terminal guidance
Oceans '97. MTS/IEEE Conference Proceedings, 2002 Missions in which an autonomous undersea vehicle docks with an underwater node for the purpose of battery recharging and/or data transfer greatly increase the scope of potential applications possible with UUVs. Robust and accurate vehicle guidance to a small, simple and reliable docking structure is a critical capability which must be developed in ...
S. Cowen, S. Briest, J. Dombrowski
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The Journal of the Acoustical Society of America, 2009 Acoustic reverberation in littoral ocean waveguides is often controlled by small-scale seabed heterogeneities. Thus, validation of reverberation models and development of realistic simulations require measurements of those scales. Clutter features for mid-frequency active sonars span scales from order 1–1000 m.
Charles W. Holland +2 more
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OCEANS 2006, 2006 This paper presents the results of the experimental evaluation of three radio frequency (RF) modems for use as communication infrastructure among multiple surfaced cooperating autonomous undersea vehicles (AUVs), gateway buoys, and land or ship based operators. RF modems are inherently more complex than their wired counterparts which makes it difficult
Radim Bartos +5 more
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