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Proceedings Paper

Study on detection sensitivity of EMCCD star tracker
Author(s): Yufeng Li; Yanbo Liang; Dongmei Li
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Paper Abstract

Star tracker is a high precise, high reliable attitude measurement component of spacecrafts, which plays a very important role in attitude measurement and control system. Unfortunately, in low light level, in order to obtain good quality image, the common CCD needs more time to integral light. This leads low data output and update slowly. In this paper, the star tracker based on a novel electronic multiply CCD (EMCCD) is introduced. EMCCD has very high sensitivity. The application of EMCCD is very finite in space explore field, although it has been applied by some country. At first, the detection sensitivity of EMCCD is analyzed, based on the signal detection theory in noise and optimal SNR threshold detection principle, and the detection sensitivity model is established. And then, the main noise sources of EMCCD are analyzed. Finally, as an example, a specific detection sensitivity calculation of EMCCD star tracker is provided with given optical parameters and exposure time.

Paper Details

Date Published: 3 February 2009
PDF: 6 pages
Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 715711 (3 February 2009); doi: 10.1117/12.806961
Show Author Affiliations
Yufeng Li, Shenyang Institute of Aeronautical Engineering (China)
Yanbo Liang, Changchun Meteorological Bureau (China)
Dongmei Li, Jilin Television of P. R. China (China)


Published in SPIE Proceedings Vol. 7157:
2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications

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