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Proceedings Paper

Design and technical demonstration of a spectral dispersive module for an IR hyperspectral instrument for Earth monitoring from geo-synchronous Earth orbit
Author(s): Eric R. Harvey; Jean Giroux; Martin Chamberland; Philippe Lagueux; Michel Dumais; Michael Maszkiewicz
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Paper Abstract

This paper presents the development of an instrumental prototype for IR hyperspectral imaging from geo-synchronous earth orbit (GEO). Within the framework of collaboration and funding support from the Canadian Space Agency (CSA), Telops performed the development and technical demonstration of a spectral dispersive module (SDM) with potential application for the US NOAA Hyperspectral Environmental Suite (HES). HES development will provide infrared and visible environmental data collection capabilities for the next GOES program series of geo-synchronous satellites that will collect weather and environmental data to aid in the prediction of weather and in climate monitoring. The design of the SDM is based on an Offner configuration. Such a design allows the gathering of high spatial and spectral resolution data while keeping the spatial and spectral distortions smaller than the size of a pixel. A convex diffraction grating is used in the system as a spectrally dispersing element. The targeted application of this Offner spectrometer configuration is weather sounding in the mid-IR spectral range. The design and demonstration phase of the SDM is described. Test results, such as spectral/spatial resolution, distortion, transmission and efficiency, with the engineering laboratory model are presented.

Paper Details

Date Published: 1 September 2004
PDF: 11 pages
Proc. SPIE 5418, Spaceborne Sensors, (1 September 2004); doi: 10.1117/12.542148
Show Author Affiliations
Eric R. Harvey, Telops Inc. (Canada)
Jean Giroux, Telops Inc. (Canada)
Martin Chamberland, Telops Inc. (Canada)
Philippe Lagueux, Telops Inc. (Canada)
Michel Dumais, Telops Inc. (Canada)
Michael Maszkiewicz, Canadian Space Agency (Canada)

Published in SPIE Proceedings Vol. 5418:
Spaceborne Sensors
Robert D. Habbit; Peter Tchoryk, Editor(s)

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