Spin-axis stabilization of gyroless and underactuated rigid spacecraft using modified Rodrigues parameters

Cheon Y.-J.
Satellite Technology Division, Korea Aerospace Research Institute, Daejeon, 305-333, South Korea

Abstract: We consider a target pointing problem of a spacecraft which has fewer control torques than the degrees of freedom to be controlled. In addition, we consider the failures of rate measurement sensors. To overcome such failure situations, a novel method to represent control error, without applying any complicated attitude estimation algorithm, is proposed using geomagnetic field measurements. The proposed error representation does not require any toque on an axis which loses control. We derive a feedback control law using modified Rodrigues parameters that globally and asymptotically stabilizes the spacecraft about the underactuated spacecraft axis along the specified target direction in an inertial frame. Simulation was carried out and results are presented illustrating the effficacy of the proposed algorithm under the condition of measurement uncertainties and environmental disturbances. © 2010 SICE.
Author Keywords: Actuator failure; Rate sensor failure; Spin-axis stabilization; Underactuated control

Year: 2010
Source title: Proceedings of the SICE Annual Conference
Art. No.: 5602836
Page : 492-496
Link: Scorpus Link
Document Type: Conference Paper
Source: Scopus
Authors with affiliations:

1. Cheon, Y.-J., Satellite Technology Division, Korea Aerospace Research Institute, Daejeon, 305-333, South Korea

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