The attitude tracking maneuvers of spaceborne spotlight SAR

Author

Xu, Liqiang ; Chen, Junli ; Chen, Guozhong ; Shao, Xiaowei ; Duan, Dengping

Author_Institution

Inst. of Aerosp. Sci. & Technol., Shanghai Jiaotong Univ., Shanghai, China

fYear

2010

fDate

8-10 June 2010

Firstpage

29

Lastpage

33

Abstract

The spotlight mode of spaceborne SAR platforms often have to point its payload to immobile target on the ground which means the satellite attitude have to follow a specific trajectory in a fixed time span. In this paper, the attitude angle, angular velocities and angular accelerate are derived. A PD control law with feedforward is developed to achieve the purpose. The approach is verified using numerical simulation with external disturbance and uncertain model.

Keywords

PD control; angular velocity control; attitude control; feedforward; numerical analysis; position control; radar tracking; spaceborne radar; synthetic aperture radar; PD control law; angular accelerate; angular velocity; attitude angle; attitude tracking maneuver; external disturbance; feedforward; immobile target; numerical simulation; satellite attitude; spaceborne spotlight SAR; spotlight mode; uncertain model; Angular velocity; Attitude control; Quaternions; Radar tracking; Satellites; Space vehicles; Trajectory;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems and Control in Aeronautics and Astronautics (ISSCAA), 2010 3rd International Symposium on

Conference_Location

Harbin

Print_ISBN

978-1-4244-6043-4

Electronic_ISBN

978-1-4244-7505-6

Type

conf

DOI

10.1109/ISSCAA.2010.5632540

Filename

5632540