New control laws for angular velocity and line-of-sight stabilization of under-actuated rigid spacecraft

Author

Zargarzadeh, Hassan ; Motlagh, Mohammad Reza Jahed

Author_Institution

Electr. Eng. Dept., Iran Univ. of Sci. & Technol., Tehran, Iran

fYear

2009

fDate

24-26 June 2009

Firstpage

594

Lastpage

599

Abstract

This paper proposes a novel general Lyapunov-based line-of-sight (LOS) controller design for rigid spacecraft by means of two torques. Then, the approach is developed in order to simultaneously stabilize the angular velocity and LOS, while the LOS axis is unactuated. As a feature of the introduced controller, it is shown that the total closed loop system´s stability is robust against any unpredefined intrinsic saturability of actuators.

Keywords

Lyapunov methods; angular velocity control; closed loop systems; control nonlinearities; space vehicles; stability; Lyapunov-based line-of-sight controller design; angular velocity; closed loop system; intrinsic saturability; line-of-sight stabilization; stability; under-actuated rigid spacecraft; Actuators; Angular velocity; Angular velocity control; Automatic control; Control systems; Radar tracking; Robust control; Space technology; Space vehicles; Torque control; Actuator Saturability; Line-of-Sight Control; Nonlinear Control; Under-Actuated Rigid Spacecraft;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation, 2009. MED '09. 17th Mediterranean Conference on

Conference_Location

Thessaloniki

Print_ISBN

978-1-4244-4684-1

Electronic_ISBN

978-1-4244-4685-8

Type

conf

DOI

10.1109/MED.2009.5164607

Filename

5164607