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Proceedings Paper

Analysis of SILEX tracking sensor performance
Author(s): Rajul P. Mathur; Christopher I. Beard; David J. Purll
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Paper Abstract

Two tracking sensor breadbroads have been developed for the European SILEX program. Critical requirements to be met by these sensors include the determination of the 1-sigma position of the focused laser spot on the detector surface to accuracies of less than 100 nm, with update frequencies as high as 8 kHz, and the minimum optical power level of 110 pW. The design is based on the use of a 14 x 14 pixel CCD array, where the spot position is determined to small subpixel accuracies over the central 2 x 2 pixel area via a centroiding algorithm executed in a microprocessor. Coarse position measurements are also made over the full area at rates up to 2 kHz.

Paper Details

Date Published: 1 July 1990
PDF: 13 pages
Proc. SPIE 1218, Free-Space Laser Communication Technologies II, (1 July 1990); doi: 10.1117/12.18181
Show Author Affiliations
Rajul P. Mathur, British Aerospace (Space Systems) Ltd. (United Kingdom)
Christopher I. Beard, British Aerospace (Space Systems) Ltd. (United Kingdom)
David J. Purll, Sira Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 1218:
Free-Space Laser Communication Technologies II
David L. Begley; Bernard D. Seery, Editor(s)

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