Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Sang Ki Jeong"'
Publikováno v:
Applied Sciences, Vol 14, Iss 10, p 4210 (2024)
The purpose of this study is to design a Swarm Control algorithm for the effective mission performance of multiple unmanned surface vehicles (USVs) used for marine research purposes at sea. For this purpose, external force information was utilized fo
Externí odkaz:
https://doaj.org/article/93aeba38f82945278617c7192cbefdc1
Publikováno v:
Measurement + Control, Vol 56 (2023)
To operate unmanned systems in the ocean, many elements are required. They could be factors related to the equipment performance or operating methods. However, the aforementioned factors are suitable for situations not assuming unexpected events; in
Externí odkaz:
https://doaj.org/article/17b880a5241c472da1e29c6e91172b66
Autor:
Dae-Hyeong Ji, Sang-Ki Jeong, Hyeung-Sik Choi, Jung-Han Lee, Sung-Hyub Ko, Jong-Wu Hyeon, Myung-Jun Kim
Publikováno v:
Measurement + Control, Vol 56 (2023)
A navigation system is critical for the operation of autonomous vehicles. Various sensors must be used to build navigation systems. To fuse multiple sensors, a highly advanced filter algorithm is required. Navigation systems have difficulties in sign
Externí odkaz:
https://doaj.org/article/27f01c9cb8084620ac0ac6da0d853051
Autor:
Dae-Hyeong Ji, Jung-Han Lee, Sung-Hyub Ko, Jong-Wu Hyeon, Ji-Hyeong Lee, Hyeung-Sik Choi, Sang-Ki Jeong
Publikováno v:
Applied Sciences, Vol 13, Iss 20, p 11367 (2023)
This study entailed the design and analysis of a 400 m class underwater glider operated by a bladder-type buoyancy engine. The underwater glider was designed for high-speed movement with a maximum velocity of 2 knots. The shape of the hull was design
Externí odkaz:
https://doaj.org/article/d26a6f22e59a4c909192693bf17d1bb5
Autor:
Ki-Beom Choo, Hyunjoon Cho, Jung-Hyeun Park, Jiafeng Huang, Dongwook Jung, Jihyeong Lee, Sang-Ki Jeong, Jongsu Yoon, Jinhun Choo, Hyeung-Sik Choi
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 3344 (2023)
This study focuses on faults in the thrusters of unmanned surface vehicles, which are fatal to the integrity of their missions. As for the fault conditions, the breakage of the thruster blade and the entanglement of floating objects were selected, an
Externí odkaz:
https://doaj.org/article/96db296b71534789a2a334580cf4b87d
Autor:
Ji-Hyeong Lee, Sang-Ki Jeong, Dae-Hyeong Ji, Hae-Yong Park, Do-Young Kim, Ki-Beom Choo, Dong-Wook Jung, Myung-Jun Kim, Myoung-Hak Oh, Hyeung-Sik Choi
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 3120 (2023)
To overcome the limitations of a single unmanned surface vehicle (USV), this study investigated the swarm control algorithms of USVs. Among various swarm control methods, a leader–follower swarm control method was selected and studied. The performa
Externí odkaz:
https://doaj.org/article/a47c558aab11480c9fed976db1731091
Publikováno v:
Measurement and Control. 56:470-480
To operate unmanned systems in the ocean, many elements are required. They could be factors related to the equipment performance or operating methods. However, the aforementioned factors are suitable for situations not assuming unexpected events; in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf7b20ace444dd2bfd472c0432a1e486
https://doi.org/10.1177/00202940221098075
https://doi.org/10.1177/00202940221098075
Autor:
Dae-Hyeong Ji, Sang-Ki Jeong, Hyeung-Sik Choi, Jung-Han Lee, Sung-Hyub Ko, Jong-Wu Hyeon, Myung-Jun Kim
Publikováno v:
Measurement and Control. 56:481-492
A navigation system is critical for the operation of autonomous vehicles. Various sensors must be used to build navigation systems. To fuse multiple sensors, a highly advanced filter algorithm is required. Navigation systems have difficulties in sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b3d085792e7174a8eabbca85140baf
https://doi.org/10.1177/00202940221095553
https://doi.org/10.1177/00202940221095553
Publikováno v:
Sensors, Vol 20, Iss 9, p 2633 (2020)
In this paper, in order to overcome certain limitations of previously commercialized platforms, a new integrated unmanned surface vehicle (USV) and unmanned underwater vehicle (UUV) platform connected via underwater cable capable of acquiring real-ti
Externí odkaz:
https://doaj.org/article/e207369714344921818a33438d474d50
Publikováno v:
Journal of Intelligent & Fuzzy Systems. 40:8001-8011
In this study, to effectively control small unmanned surface vehicles (USVs) for marine research, characteristics of ocean current were learned using the long short-term memory (LSTM) model algorithm of a recurrent neural network (RNN), and ocean cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79bce3fe417dc3317cd273a3cb88e14b
https://doi.org/10.3233/jifs-189622
https://doi.org/10.3233/jifs-189622