CMOS APS imaging system application in star tracker

Jie Li; Jinguo Liu; Xuekui Li; Yaxia Liu; Zhihang Hao

doi:10.1117/12.576273

20 January 2005 CMOS APS imaging system application in star tracker

Jie Li, Jinguo Liu, Xuekui Li, Yaxia Liu, Zhihang Hao

Proceedings Volume 5633, Advanced Materials and Devices for Sensing and Imaging II; (2005) https://doi.org/10.1117/12.576273
Event: Photonics Asia, 2004, Beijing, China

Abstract

Small satellites are capable of performing space explore missions that require accurate attitude determination and control. However, low weight, size, power and cost requirements limit the types of attitude sensor of small craft, such as CCD, are not practical for small satellites. CMOS APS is a good substitute for attitude sensors of small craft. Some of the technical advantages of CMOS APS are no blooming, single power, low power consumption, small size and little support circuitry, direct digital output, simple to system design, in particular, radiation-hard characteristic compare with CCD. This paper discusses the application probability of CMOS APS in star tracker for small satellites, further more, a prototype ground-based star camera based on STAR250 CMOS image sensor has been built. In order to extract stars positions coordinates, subpixel accuracy centroiding algorithm has been developed and tested on some ground-based images. Moreover, the camera system star sensitivity and noise model are analyzed, and the system accuracy is been evaluated. Experimental results indicate that a star camera based on CMOS APS is a viable practical attitude sensor appropriate for space small satellites.

Citation Download Citation

Jie Li, Jinguo Liu, Xuekui Li, Yaxia Liu, and Zhihang Hao "CMOS APS imaging system application in star tracker", Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); https://doi.org/10.1117/12.576273

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available