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Proceedings Paper • Open Access

Conception d’instrument pour une mission d’observation haute resolution et grand champ
Author(s): Jean-Philippe Fayret; Catherine Gaudin-Delrieu; Jean-Luc Lamard; Christophe Devilliers; Vincent Costes

Paper Abstract

The future Earth observation missions aim at delivering images with a high resolution and a large field of view. The PLEIADES mission, coming after the SPOT satellites, lead to enhance the resolution to submetric values with a swath over 20km. Panchromatic and multispectral images will be proposed. Starting with the mission requirements elaborated by the CNES, Alcatel Space Industries has conducted a study to identify the instrument concepts most suited to comply with these performance. In addition, to minimise the development costs, a mini satellite approach has been selected, leading to a compact concept for the instrument design. During the study, various detection techniques and the associated detectors have been investigated from classical pushbroom to supermode acquisition modes. For each of these options, different optical lay-outs were proposed and evaluated with respect to performance as well as interfaces requirements. Optical performance, mechanical design constraints and manufacturing processes were taken into account to assess the performances of the various solutions. Eventually the most promising concept was selected and a preliminary design study performed. This concept, based on a Korsch optical scheme associated with TDI detectors, complies with the mission requirements and allows for a wide number of possibilities of accommodation with a minisatellite class platform.

Paper Details

Date Published: 21 November 2017
PDF: 11 pages
Proc. SPIE 10569, International Conference on Space Optics — ICSO 2000, 105690M (21 November 2017); doi: 10.1117/12.2307905
Show Author Affiliations
Jean-Philippe Fayret, Alcatel Space Industries (France)
Catherine Gaudin-Delrieu, Alcatel Space Industries (France)
Jean-Luc Lamard, Alcatel Space Industries (France)
Christophe Devilliers, Alcatel Space Industries (France)
Vincent Costes, 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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