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Proceedings Paper

SiC focal plane assembly for the Pleiades HR Satellite
Author(s): P. Pranyies; D. Deswarte; I. Toubhans; Roland Le Goff
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Paper Abstract

Since the end of 1970s, EADS-SODERN has developed a series of detection units positioned in the focal plane of earth observation instruments and mounted on the French civil and military satellites like SPOT and HELIOS. Those detection units, designed for a push broom operating mode, have been progressively adapted to match the technical evolutions of the programmes. With PLEIADES High Resolution optical satellite CNES is proposing a completely new concept which has the capability to acquire the wide-swath of 20 km at nadir with panchromatic and multispectral imagery and a panchromatic mode resolution of 0.7 m at nadir. Within the industrial structure of this new programme, EADS SODERN is responsible for the development of the Focal Plane Assembly (FPA). This FPA, which is one of the most significant parts performing the imaging function, offers a wide variety of new technologies. This paper describes the design and performance budgets of this new FPA: o The mechanical support and thermal control with the Silicon Carbide (SiC) structure allows evacuating the detectors dissipation while maintaining stable the detection lines. o The folding mirrors are used to achieve the required limitation of panchromatic / multispectral distance with the constraint of detectors package size. o The spectral selection is made by strip filters place very close in front of the detectors.

Paper Details

Date Published: 4 November 2004
PDF: 9 pages
Proc. SPIE 5570, Sensors, Systems, and Next-Generation Satellites VIII, (4 November 2004); doi: 10.1117/12.573035
Show Author Affiliations
P. Pranyies, EADS Sodern (France)
D. Deswarte, EADS Sodern (France)
I. Toubhans, EADS Sodern (France)
Roland Le Goff, EADS Sodern (France)

Published in SPIE Proceedings Vol. 5570:
Sensors, Systems, and Next-Generation Satellites VIII
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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