Norsk Elektro Optikk AS
specialists in electro optic technology
What is this? Click on image to find out.
Home Research Activitites Products and Services News and Publications Company Information Contact Information
Selected
News
Publications
About This Web site

Publications


HSRS: A STUDY FOR A SPACEBORNE
HIGH SPECTRAL RESOLUTION SOUNDING INTERFEROMETER


D. Simeoni, R. Krawczyk, Jp. Chessel
AEROSPATIALE-CANNES
100 bld di Midi
06322 Cannes La Bocca, Cedex FRANCE
A. Mariani, R. Bonsignori, P. Corsi
Officine Galileo (Italy)
T. Jaeger, J.K. Hagene, . Ballangrud
Norsk Elektro Optikk (Norway)

ABSTRACT

This paper deals with a High Spectral Resolution Sounder (HSRS) for 3 axis stabilized METEOSAT Second Generation satellite, dedicated to meteorological survey. This study has been performed under ESA contract by Aerospatiale as Prime Contractor, with Officine Galileo (Italy) for optics and mechanisms, and Norsk Elektro Optikk (Norway) for focal plane (with its cooling) and signal processing, as Subcontractors.

From the parametric analyses of several candidate designs (dispersive spectrometer, Fourier Transform spectrometer, hybrid [Forurier Transform with grating] spectrometer), the second one, with on-board signal processing, has been selected as the only solution able to meet the requirements of a high spectral resolution sounding from geostationary altitude. The proposed instrument covers the 670-2700 cm-1 spectral range (split into 3 spectral bands) with a relative spectral resolution of 1 to 2 X 10 -3 (0.002). The pixel size on ground is 10 km. The sampling distance between two recordings can be modified, allowing to satisfy, with the same instrument, the constraints on both operational modes, namely the Mesoscale mission (Europe coverage within 1 hour) and the Synoptic Scale mission (the whole Earth coverage within 2 hours with a wider sampling distance).

The instrument volume is less than 1 m3, its mass in the order of 230 kg and the needed power roughly 400 W.


Back to Publications

Bottomm menu: [Contact] [Maps and Directions] [About NEO] [About this Site]
© Norsk Elektro Optikk AS 2004. All rights reserved