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Proceedings Paper

Calibrated infrared ground/air radiometric spectrometer
Author(s): J. Kevin Silk; Elliot Robert Schildkraut; Russell S. Bauldree; Shawn M. Goodrich
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Paper Abstract

The calibrated infrared ground/air radiometric spectrometer (CIGARS) is a new high performance, multi-purpose, multi- platform Fourier transform spectrometer (FPS) sensor. It covers the waveband from 0.2 to 12 micrometer, has spectral resolution as fine as 0.3 cm-1, and records over 100 spectra per second. Two CIGARS units are being used for observations of target signatures in the air or on the ground from fixed or moving platforms, including high performance jet aircraft. In this paper we describe the characteristics and capabilities of the CIGARS sensor, which uses four interchangeable detector modules (Si, InGaAs, InSb, and HgCdTe) and two optics modules, with internal calibration. The data recording electronics support observations of transient events, even without precise information on the timing of the event. We present test and calibration data on the sensitivity, spectral resolution, stability, and spectral rate of CIGARS, and examples of in- flight observations of real targets. We also discuss plans for adapting CIGARS for imaging spectroscopy observations, with simultaneous spectral and spatial data, by replacing the existing detectors with a focal plane array (FPA).

Paper Details

Date Published: 17 June 1996
PDF: 15 pages
Proc. SPIE 2763, Electro-Optical Technology for Remote Chemical Detection and Identification, (17 June 1996); doi: 10.1117/12.243280
Show Author Affiliations
J. Kevin Silk, Block Engineering, Inc. (United States)
Elliot Robert Schildkraut, Block Engineering, Inc. (United States)
Russell S. Bauldree, 46th Test Wing/U.S. Air Force (United States)
Shawn M. Goodrich, 46th Test Wing/U.S. Air Force (United States)

Published in SPIE Proceedings Vol. 2763:
Electro-Optical Technology for Remote Chemical Detection and Identification
Mahmoud Fallahi; Ellen A. Howden, Editor(s)

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