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Proceedings Paper

The experimental research on star image tracking system
Author(s): Wei-jie Hu; Guang-Chun Bian; Jun-yuan Han
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Paper Abstract

The space-borne remote sensor is the modern high performance astronautic detecting tool without limit of domain. It has high ability on object finding and widely used in military and civil field. The image quality of space remote sensor is often determined by its optical design, manufacture, system adjustment and etc... But on the other hand, the space environment such as the vibration and shaking of satellite, the wind of solar and so on have heavy influence on the quality of image. All these facts often result the jitter of the optical axis. And the jitter would greatly decrease the image quality. In order to realize the diffraction resolution limit of optical design, an image tracking system must be used in the space remote sensor. On the basis of previous study, a complete and systematic analysis is conducted on the effect of jitter on the image quality of a push-broom camera. Compared the merit and demerit of space based image tracking technology; the star image tracking system is suggested since the fast detecting speed. The simulation test bed is designed and the experiments show that the centroid location algorithm's precision achieves 0.1 CCD pixels in theory and 0.3 CCD pixels in this test bed.

Paper Details

Date Published: 5 March 2008
PDF: 9 pages
Proc. SPIE 6623, International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing, 662307 (5 March 2008); doi: 10.1117/12.791271
Show Author Affiliations
Wei-jie Hu, Beijing Institute of Technology (China)
Guang-Chun Bian, Beijing Institute of Technology (China)
Jun-yuan Han, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 6623:
International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing
Liwei Zhou, Editor(s)

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