- Balkan Journal of Electrical and Computer Engineering
- Volume:6 Issue:1
- Quaternion-Based Robust Satellite Attitude Tracking Control
Quaternion-Based Robust Satellite Attitude Tracking Control
Authors : JANSET DASDEMİR
Pages : 53-61
Doi:10.17694/bajece.402013
View : 18 | Download : 13
Publication Date : 2018-02-15
Article Type : Research Paper
Abstract :In this paper, a nonlinear robust quaternion-based controller is developed to address the three-axis attitude tracking control problem of rigid spacecraft in presence of parametric uncertainties, unknown external disturbances and sensor noise. As a first step, a robust controller is designed that compensates parametric uncertainty and disturbance effects. The robust controller then reformulated to deal also with sensor noise. Singularity free unit quaternions are used to represent the attitude of the satellite in three-dimensional space. The Lyapunov-based stability analysis is applied to prove that a uniformly ultimately bounded tracking result is achieved. Simulation results are presented to illustrate the feasibility of the proposed control strategy.Keywords : Attitude tracking, unit quaternion, robust control, sensor noise