Results 21 to 30 of about 50,279 (277)

Analysis of terrain navigability in underwater terrain aided navigation [PDF]

open access: yesJournal of Physics: Conference Series, 2021
Abstract Aiming at the problem that the single terrain characteristic parameter cannot comprehensively evaluate the terrain navigability of the matching areas, the weighted vector correlation degree is introduced, and the terrain characteristic parameters such as the standard deviation of terrain elevation, roughness, correlation ...
Miao Zhao, Zhenyang Xu, MA Weiqiang
openaire   +1 more source

Optimal path shape for range-only underwater target localization using a Wave Glider [PDF]

open access: yes, 2018
Underwater localization using acoustic signals is one of the main components in a navigation system for an autonomous underwater vehicle (AUV) as a more accurate alternative to dead-reckoning techniques.
Aguzzi, Jacopo   +6 more
core   +2 more sources

Oceanographic and underwater acoustics research : conducted during the period 1 November 1960 - 30 April 1961 [PDF]

open access: yes, 1961
Digital computing techniques have been used in special computing applications in underwater acoustics at WHOI for many years, but recently we have commenced intensive application of digital data handling and computing facilities to a variety of computing,
Woods Hole Oceanographic Institution, /
core   +1 more source

Analysis of the Batychron Research Project

open access: yesScientific Journal of Gdynia Maritime University, 2022
The article presents the research project called ‘Batychron’. Batychron is a flexible underwater bell patented by the Gdynia Maritime University as a ‘device applicable in hydraulic engineering for underwater transport and diving with the safety of ...
Julia Kosiek   +2 more
doaj   +1 more source

A single acoustic beacon-based positioning method for underwater mobile recovery of an AUV

open access: yesInternational Journal of Advanced Robotic Systems, 2018
This article presents a navigation method for an autonomous underwater vehicle being recovered by a human-occupied vehicle. The autonomous underwater vehicle is considered to carry underwater navigation sensors such as ultra-short baseline, Doppler ...
Ziye Zhou   +4 more
doaj   +1 more source

Underwater Navigation using Pseudolite

open access: yesDefence Science Journal, 2011
Using pseudolite or pseudo satellite, a proven technology for ground and space applications for the augmentation of GPS, is proposed for underwater navigation. Global positioning systems (GPS) like positioning for underwater system, needs minimum of four pseudolite-ranging signals for pseudo-range and accumulated delta range measurements.
Krishneshwar Tiwary   +2 more
openaire   +1 more source

Construction Method of the Topographical Features Model for Underwater Terrain Navigation

open access: yesPolish Maritime Research, 2015
Terrain database is the reference basic for autonomous underwater vehicle (AUV) to implement underwater terrain navigation (UTN) functions, and is the important part of building topographical features model for UTN.
Wang Lihui, Yu Le, Zhu Yanhua
doaj   +1 more source

The predictive functional control and the management of constraints in GUANAY II autonomous underwater vehicle actuators [PDF]

open access: yes, 2018
Autonomous underwater vehicle control has been a topic of research in the last decades. The challenges addressed vary depending on each research group's interests.
Gauthier Sellier, Alain   +2 more
core   +2 more sources

Design of obstacle detection and avoidance system for GUANAY II AUV [PDF]

open access: yes, 2016
Postprint (published ...
Galarza Bogotá, Cesar Mauricio   +3 more
core   +1 more source

Acoustic positioning and tracking in Portsmouth Harbour, New Hampshire [PDF]

open access: yes, 2007
Portsmouth Harbor, New Hampshire, is frequently used as a testing area for multibeam and sidescan sonars, and is the location of numerous ground-truthing studies. Having the ability to accurately position underwater sensors is an important aspect of this
Huff, Lloyd C   +5 more
core   +2 more sources

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