Design of the infrared imaging chain for the PRISM hyperspectral imager

Thierry Dartois; Muriel Giordanengo; Jean-Luc Ribet; Umberto Del Bello

doi:10.1117/12.409896

15 December 2000 Design of the infrared imaging chain for the PRISM hyperspectral imager

Thierry Dartois, Muriel Giordanengo, Jean-Luc Ribet, Umberto Del Bello

Proceedings Volume 4130, Infrared Technology and Applications XXVI; (2000) https://doi.org/10.1117/12.409896
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

ALCATEL has recently studied an infrared imaging chain, in the frame of phase A studies for the Land Surface Processes and Interactions Mission (LSPIM), which was one of the four candidate Core Missions for the European Space Agency Earth Explorer Program. The LSPIM satellite carries a single optical payload named PRISM (Processes Research by an Imaging Space Mission). PRISM is a multispectral imager based on the push broom imaging principle, operating at approximately 679 km altitude with a NADIR swath of 50 km associated to a 50 m spatial resolution. The paper presented herewith summarizes the results of the IR imaging chains study: composed of two IR focal planes (SWIR and TIR) integrated in dedicated ALCATEL dewars (one for each FPA), two proximity electronic modules and a common analog processing unit delivering digital video data to the one board mass memory unit (MMU). The main specifications of the detectors and electronic units are presented, a baseline of the imaging chain architecture complying with the requirements is then proposed with the main achieved trades off. The concept and associated performances of cutting-edge cooling systems are also introduced in this paper.

Citation Download Citation

Thierry Dartois, Muriel Giordanengo, Jean-Luc Ribet, and Umberto Del Bello "Design of the infrared imaging chain for the PRISM hyperspectral imager", Proc. SPIE 4130, Infrared Technology and Applications XXVI, (15 December 2000); https://doi.org/10.1117/12.409896

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