Authors:
Min Sig Kang
1
;
Jong Kwang Lee
2
and
Ki Ho Kim
2
Affiliations:
1
Kyungwon University, Korea, Republic of
;
2
Korea Atomic Energy Research Institute, Korea, Republic of
Keyword(s):
OTM (on-the-move) Antenna, Satellite Communication, LOS(line of sight) stabilization, Two-inertia system control, Damping control, Vehicle motion compensation, Roll compensation.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Intelligent Control Systems and Optimization
;
Mechatronic Systems
Abstract:
In this study, an OTM(On-The-Move) antenna which is mounted on ground vehicles and used for communication between vehicle and satellite was addressed. Since vehicles move during communication, active antenna LOS(line-of-sight) stabilization is a core technology to guarantee satellite communication quality. Stabilization control of the LOS of antenna which is driven by a motor coupled with gear and flexible driving shaft has been addressed. In the consideration of finite stiffness of the shaft, disturbance torque due to vehicle motion coupled with gear ratio, and kinematic coupling of the outer gimbal dynamics, a stabilization control has been proposed. The feasibility of the proposed control design was verified along with simulation results.