Title :
On deterministic approaches to attitude determination with magnometer in eclipse
Author :
Moodi, Hoda ; Bustan, Danyal
Author_Institution :
Alumni from Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
A gyroless deterministic attitude determination algorithm based on simulation of sun in eclipse is stated in this paper and has been compared to stochastic filters like extended Kalman filter and unscented Kalman filter. Attitude determination with low cost sensors such as magnometer and sun sensor results in usage of recursive algorithms such as Kalman filter which has the probability of divergence, but with deterministic point to point algorithm such as the one introduced in this paper we can be sure to have an attitude determination with a fixed maximum error. Proposed method has been compared with Extended Kalman Filter and Unscented Kalman filter due to its modeling error, robustness and amount of calculations. Attitude determination is based on magnetic sensors and sun sensors. Solar panels are modeled for a hexagonal satellite as an alternative for sun sensors and sun vector is derived from panels current.
Keywords :
Kalman filters; artificial satellites; attitude measurement; eclipses; magnetic field measurement; magnetic sensors; probability; recursive filters; stochastic processes; eclipse; extended Kalman filter; gyroless deterministic attitude determination algorithm; hexagonal satellite; magnetic sensors; magnometer; probability; recursive algorithms; solar panels; stochastic filters; sun sensors; sun vector; unscented Kalman filter; Costs; Extraterrestrial measurements; Filters; Low earth orbit satellites; Magnetic sensors; Mathematical model; Position measurement; Robustness; Stochastic processes; Sun; EKF; UKF; deterministic attitude determination algorithm; magnometer; solar panels;
Conference_Titel :
Control and Decision Conference (CCDC), 2010 Chinese
Conference_Location :
Xuzhou
Print_ISBN :
978-1-4244-5181-4
Electronic_ISBN :
978-1-4244-5182-1
DOI :
10.1109/CCDC.2010.5498500