Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ki-Lyuk Yong"'
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 17, Iss 2, Pp 309-316 (2000)
KOMPSAT-2 will carry MSC (Multi-Spectral Camera) which provides 1m resolution panchromatic and 4m resolution multi-spectral images at the altitude of 685km sun-synchronous mission orbit. The mission operation of KOMSPAT-2 is to provide the earth obse
Externí odkaz:
https://doaj.org/article/e24c98e4c12245e49735f5543d5e6fa0
Autor:
Seon-Ho Lee, Dae-Kwan Kim, Do-Hwan Park, Dong-Soo Choi, Yong-Bok Kim, Ki-Lyuk Yong, Il-Jong Kim
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 43:172-178
The control moment gyroscope(CMG) which is well known as an effective high-torque-generating device is applicable to space vehicles, airplanes, ships, automobiles, robotics, etc. for attitude stabilization and maneuver. This paper deals with the over
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 22:1042-1048
A 2-axis gimbal system is one of main disturbance sources affecting image jitter response of a satellite. The gimbal system comprises azimuth stage and elevation stage, and these pointing mechanism can be rotated by stepping motors about its azimuth
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 21:828-833
A reaction wheel assembly(RWA) is the largest disturbance source that can induce high frequency micro-vibration on an optical payload of satellites. To ensure a tight pointing-stability budget of satellites, the RWA disturbance effect on spacecraft s
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :990-994
Actuator-induced disturbances are among the most crucial factors in correct spacecraft attitude pointing and stability for fine attitude control problems. In order to develop a CMG as an actuator for fine controls, CMG-induced disturbances should be
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 38:702-708
Reaction wheel assemblies(RWA) are expected to be one of the largest high frequency disturbance sources to the optical payload of satellites. To ensure the tight pointing-stability budget and high image quality of satellites, a vibration isolation de
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 20:263-271
A reaction wheel is commonly used, as an important actuator, to control the attitude of a satellite. Operation of the reaction wheel plays a role of an excitation source to loading equipment inside the satellite. As requirements for environmental vib
Publikováno v:
IET Control Theory & Applications. 3:1517-1520
This study addresses an axis-manoeuvring problem using two-axis rotational kinematics. The goal of two-axis rotational kinematics is to find a policy of rotating an arbitrary axis towards another arbitrary direction using only one or two rotations of
Publikováno v:
Acta Astronautica. 65:1089-1093
Attitude determination refers to determining the orientation of a vehicle relative to its reference coordinate system. This paper presents a new algorithm for three-axis attitude determination using measurement vectors composed of incomplete vector c
Publikováno v:
Journal of the Korean Society for Aeronautical Space Science. 37:837-842
The efficient dynamic modeling of a satellite with flexible solar arrays is established by using the component mode synthesis technique. A flexible satellite model can be defined as the assembly of two sub-structures, central body and solar array. Th