Hybrid switched time-optimal control of underactuated spacecraft
Sign Up to like & getrecommendations! Published in 2018 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2018.01.051
Abstract: Abstract This paper studies the time-optimal control problem for an underactuated rigid spacecraft equipped with both reaction wheels and gas jet thrusters that generate control torques about two of the principal axes of the spacecraft.… read more here.
Keywords: time optimal; control; spacecraft; reaction wheels ... See more keywords
Experimental investigation of microvibrations induced by reaction wheels on earth observation satellite
Sign Up to like & getrecommendations! Published in 2021 at "Advances in Space Research"
DOI: 10.1016/j.asr.2021.08.035
Abstract: Abstract The evaluation of microvibrations effect is crucial for the success of remote sensing missions. The moving parts on the satellite such as reaction wheels can create microvibrations disturbances, which cause degradation of image quality.… read more here.
Keywords: experimental investigation; satellite; methodology; reaction wheels ... See more keywords
Fault Isolation of Reaction Wheels for Satellite Attitude Control
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2019.2946665
Abstract: A new hierarchical method for fault detection, isolation, and identification of nonlinear systems with applications for in-orbit closed-loop controlled satellites is proposed where fault detection employs unscented Kalman filter and adaptive thresholds. Fault isolation employs… read more here.
Keywords: reaction wheels; isolation reaction; fault isolation; fault ... See more keywords