Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Kyeum-Rae Cho"'
Publikováno v:
Aerospace Science and Technology. 50:139-148
Approximately 900 satellites currently orbit Earth. When satellites complete their mission, they are either intentionally deorbited or placed in orbits that will cause them to crash into Earth within 25 years after mission completion based on the rul
Autor:
Kie-Jeong Seong, Kyeum-Rae Cho, Dae-Woo Lee, Jeong-Ho Kim, Bong-kyu Cheon, Chan-Oh Min, Dong-in Han
Publikováno v:
International Journal of Aeronautical and Space Sciences. 16:581-589
This paper describes a monocular vision-based formation flight technology using two fixed wing unmanned aerial vehicles. To measuring relative position and attitude of a leader aircraft, a monocular camera installed in the front of the follower aircr
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 43:166-171
This paper shows the design of operation flight program(OFP) using model-based design(MBD) method which is used in various engineering fields to reduce time and flight risks for development. The verification of OFP for DO-178C guidelines carry out by
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 50:2405-2415
We propose a two-stage trajectory planning (TSTP) method using monocular vision for keeping continuous surveillance or reconnaissance of a target, and for relaying communication between a ground vehicle and an unmanned aerial vehicle (UAV). The cost
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 42:158-164
LEO(Low Earth Orbit) Satellite which is discarded should be reentered to atmosphere in 25 years by `25 years rule` of IADC(Inter-Agency Space Debris Coordination Committee) Guidelines. If the parts of satellite are survived from severe aerothermodyna
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 41:532-538
This paper describes a vision-based only attitude estimation technique for the leader in the formation flight. The feature points in image obtained from the X-PLANE simulator are extracted by the SURF(Speed Up Robust Features) algorithm. We use POSIT
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 40:354-363
Now there are a lot of expired satellites or space debris around the earth orbit and they threaten the operating satellites and manned space missions. KOMPSAT-2 that scheduled to operate the mission by July, 2013 also has to consider the space debris
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 39:674-681
The increasing number of orbital debris objects is a risk for satellite operations due to space activities over past 50 years since launched Sputnik. The GEO (Geostationary Earth Orbit), where COMS-1 is being operated since last June 2010, has more a
Publikováno v:
Aerospace Science and Technology. 15:269-282
The reentry vehicle is affected by various disturbances such as a wind gust, atmospheric condition or aerodynamic problems in the approach and landing phase. Therefore it is necessary to design a robust control scheme. This paper presents a control s
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 39:408-415
The moon landing is composed of the de-orbit descent phase, powered descent phase, and the powered descent phase is divide into 3-sub phase of the braking, approach, final landing phase. In this paper, the lunar lander perform landing control using 3