Image-Based Attitude Control of a Remote Sensing Satellite |
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Authors: | Gregor Klan?ar Sa?o Bla?i? Drago Matko Ga?per Mu?i? |
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Affiliation: | 1.SPACE-SI,Ljubljana,Slovenia;2.Faculty of Electrical Engineering,University of Ljubljana,Ljubljana,Slovenia |
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Abstract: | This paper deals with the image-based control of a satellite for remote sensing. Approach is demonstrated by simulation where
the position of the satellite is obtained with the Simplified General Perturbations Version 3 model and its orientation by
simulating its dynamic and kinematic models. For a known position and orientation of the satellite the images are obtained
using the satellite’s onboard camera, simulated by the Google Earth application. The orientation of the satellite is governed
by reaction wheels, which produce the required moments to the satellite. The image-based control law using SIFT image features
is applied to achieve an automatic reference-point observation on the Earth’s surface. Main contributions of the paper are
the following: use of the same sensor for Earth observation and attitude control, simplicity of the approach, no need for
explicit calibration of camera parameters and good tracking accuracy. Demonstrated simulation results and performance analysis
confirm the approach applicability. |
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Keywords: | |
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