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Proceedings Paper • Open Access

Uncooled micro-earth sensor for micro-satellite attitude control: Earth remote sensing application
Author(s): J.-Y. Fourniols; G. Soto-Romero; F. Bony; C. Vergnenègre; J.-J. Simonne; D. Esteve; J. Albukerque

Paper Abstract

MEMS technology now makes possible to produce active microdevices combining detection, signal processing, and data storage with accuracy and compactness. In view of their characteristics, it can be expected that such microsensors will be used extensively in space applications dedicated to micro and nano satellites.

For this purpose, a specific investigation dealing with the complete development of a micro-earth sensor used for attitude control of Low Earth Orbit satellites is under realization and test. Based on an infrared uncooled 320x240 microbolometer the experimental characterization of the final active system consists of three microsensors linear arrays of 240 pixels of the same technology, radialy spaced at 120°, watching and receiving earth IR radiations. The transition between excited and non excited pixels will determine the IR image of the Earth/Space transition hidden in IR atmosphere response. Specific on-chip algorithms have been implemented to extract the transition and compute the attitude satellite position in roll and pitch.

The complete physical system modeling of one linear 240 pixels array including earth models, optic characteristics, microbolometer behavioral models, mixed analog/digital electronics and associated algorithms is consistent (at ±8% ) with the breadboard measurements.

Paper Details

Date Published: 21 November 2017
PDF: 10 pages
Proc. SPIE 10569, International Conference on Space Optics — ICSO 2000, 105692D (21 November 2017); doi: 10.1117/12.2307881
Show Author Affiliations
J.-Y. Fourniols, Lab. d'Analyse et d'Architecture des Systèmes (France)
G. Soto-Romero, Lab. d'Analyse et d’Architecture des Systèmes (France)
F. Bony, Lab. d'Analyse et d’Architecture des Systèmes (France)
C. Vergnenègre, Lab. d'Analyse et d’Architecture des Systèmes (France)
J.-J. Simonne, Lab. d'Analyse et d'Architecture des Systèmes (France)
D. Esteve, Lab. d'Analyse et d'Architecture des Systèmes (France)
J. Albukerque, Ctr. National d'Études Spatiales (France)


Published in SPIE Proceedings Vol. 10569:
International Conference on Space Optics — ICSO 2000
Georges Otrio, Editor(s)

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