Zobrazeno 1 - 10
of 170
pro vyhledávání: '"Hyun-Taek Choi"'
Publikováno v:
Defence Technology, Vol 36, Iss , Pp 95-104 (2024)
Swarm robot systems are an important application of autonomous unmanned surface vehicles on water surfaces. For monitoring natural environments and conducting security activities within a certain range using a surface vehicle, the swarm robot system
Externí odkaz:
https://doaj.org/article/f5c00ed0e60f4ecbadb872f0d4260d5d
Publikováno v:
IEEE Access, Vol 11, Pp 36203-36217 (2023)
This paper presents the development and field testing of multiple autonomous surface vehicles (ASVs) for autonomous cooperative navigation tasks in marine environments. The developed ASVs were designed in a catamaran hull form, and various systems re
Externí odkaz:
https://doaj.org/article/e0ac0faebb32407483927273a49ca5b0
Publikováno v:
IEEE Access, Vol 10, Pp 31155-31164 (2022)
The quality of sonar seabed mapping performed using autonomous underwater vehicles depends on the accuracy of the vehicle trajectory estimation. To reduce the accumulated pose estimation errors from dead reckoning, bathymetry observations from sonar
Externí odkaz:
https://doaj.org/article/b6d4739b44934e908f46e2ca83947ce9
Publikováno v:
IEEE Access, Vol 8, Pp 208707-208717 (2020)
Underwater geophysical properties can provide useful information for surface navigation, particularly in situations where a global navigation satellite system is unavailable. Unmanned surface vehicles (USVs) equipped with geophysical sensors can meas
Externí odkaz:
https://doaj.org/article/77a9abba28054fdab16e3b11e52b84a2
Publikováno v:
한국해양공학회지, Vol 32, Iss 6, Pp 511-517 (2018)
This paper proposes a vision-based underwater laser scanner with separate structures for an underwater camera and a line laser projector. Because the two devices can be adaptively placed regardless of the features of the unmanned underwater vehicle (
Externí odkaz:
https://doaj.org/article/d7dccbe59b94480fa4d56da63ea1a462
Publikováno v:
IEEE Access, Vol 6, Pp 62552-62563 (2018)
Geomagnetic field signals have potential for use in underwater navigation and geophysical surveys. To map underwater geomagnetic fields, we propose a method that exploits an autonomous surface vehicle. In our system, a magnetometer is rigidly attache
Externí odkaz:
https://doaj.org/article/9ebfa99d1438421181cb880ac88d7b30
Publikováno v:
Sensors, Vol 15, Iss 9, Pp 21636-21659 (2015)
Image-based localization is one of the most widely researched localization techniques in the robotics and computer vision communities. As enormous image data sets are provided through the Internet, many studies on estimating a location with a pre-bui
Externí odkaz:
https://doaj.org/article/f47da676e07748599548d12841d1f06c
Publikováno v:
Sensors, Vol 18, Iss 9, p 3062 (2018)
Acoustic source localization is used in many underwater applications. Acquiring an accurate directional angle for an acoustic source is crucial for source localization. To achieve this purpose, this paper presents a method for directional angle estim
Externí odkaz:
https://doaj.org/article/12bc82f012d2410b9fd2559adc67b00a
Publikováno v:
Sensors, Vol 17, Iss 9, p 1953 (2017)
This paper proposes a probability-based framework for recognizing underwater landmarks using sonar images. Current recognition methods use a single image, which does not provide reliable results because of weaknesses of the sonar image such as unstab
Externí odkaz:
https://doaj.org/article/eedf914bfea44e96bd487611d8edb4c7
Publikováno v:
Journal of Institute of Control, Robotics and Systems. 29:347-354