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21 November 2017 Laboratory test of an APS-based sun sensor prototype
Giancarlo Rufino, Alessandro Perrotta, Michele Grassi
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Proceedings Volume 10568, International Conference on Space Optics — ICSO 2004; 105680Z (2017) https://doi.org/10.1117/12.2307972
Event: International Conference on Space Optics 2004, 2004, Toulouse, France
Abstract
This paper deals with design and prototype development of an Active Pixel Sensor — based miniature sun sensor and a laboratory facility for its indoor test and calibration. The miniature sun sensor is described and the laboratory test facility is presented in detail. The major focus of the paper is on tests and calibration of the sensor. Two different calibration functions have been adopted. They are based, respectively, on a geometrical model, which has required least-squares optimisation of system physical parameters estimates, and on neural networks. Calibration results are presented for the above solutions, showing that accuracy in the order of 0.01° has been achieved. Neural calibration functions have attained better performance thanks to their intrinsic auto-adaptive structure.
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Giancarlo Rufino, Alessandro Perrotta, and Michele Grassi "Laboratory test of an APS-based sun sensor prototype", Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105680Z (21 November 2017); https://doi.org/10.1117/12.2307972
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KEYWORDS
Sensors
Calibration
Sun
Prototyping
Error analysis
Electronics
Light sources
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