The Schmidt-Dyson: a fast space-borne wide-field hyperspectral imager

Details The Schmidt-Dyson: a fast space-borne wide-field hyperspectral imager The Schmidt-Dyson: a fast space-borne wide-field hyperspectral imager

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7812e..18l&link_type=abstract

Imaging Spectrometry XV. Edited by Shen, Sylvia S.; Lewis, Paul E. Proceedings of the SPIE, Volume 7812, pp. 78120M-78120M-13

Computer Science

Scientific paper

Hyperspectral imaging from space requires a very efficient, low f-number optical system to obtain a 20 - 30 m GSD without ground motion compensation. The combination of a folded Schmidt telescope with a Dyson spectrometer meets these requirements while retaining spectral purity. We present the basic design of an instrument that images at f/1.2 with high resolution: with a 300 mm focal length it has a 4 degree field with 20 m GSD and 40 km ground swath from 600 km altitude. Various capabilities, problems, and design options of the Schmidt-Dyson combination are discussed. Detailed design for a specific application remains to be done.

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