| Kalman Filtering for Spacecraft Attitude Estimation by Low-Cost Sensors
Henzeh Lee*, Yoonhyuk Choi* , Hyochoong Bang*, Jong-Oh Park**
International Journal of Aeronautical and Space Sicences, vol. 9, no. 1, pp.147-161, 2008
Abstract : In this paper, fine attitude estimation using low-cost sensors for attitude pointing missions of spacecraft is addressed. Attitude kinematics and gyro models including bias models are in general utilized to estimate spacecraft attitude and angular rate. However, a linearized model and a transition matrix are derived in this paper from nonlinear spacecraft dynamics with external disturbances. A Kalman filtering technique is applied and offers relatively high estimation accuracy under dynamic uncertainties. The proposed approach is demonstrated using numerical simulations.
Keyword : Kalman Filter, low-cost sensors, external disturbance, attitude pointing |
