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Proceedings Paper

Performance characterization and calibration of the TRWIS III hyperspectral imager
Author(s): Mark A. Folkman; Darrell A. Gleichauf; Charles T. Willoughby; Sveinn Thordarson; Bill H. Quon
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Paper Abstract

The tremendous potential for hyperspectral imagery as a remote sensing tool has driven the development of TRW's TRWIS III hyperspectral imager. This instrument provides 384 contiguous spectral channels at 5 nm to 6.25 nm spectral resolution covering the 400 nm to 2450 nm wavelength range. The spectra of each pixel in the scene are gathered simultaneously at signal to noise ratios of several hundred to one for typical Earth scenes. Designed to fly on a wide range of aircraft and with variable frame rate, eh ground resolution can be varied from approximately 30 cm to 11 m depending on the aircraft altitude. Meeting critical performance requirements for image quality, co-registration of spectral samples, spectral calibration, noise, and radiometric accuracy are important to the success of the instrument. TRWIS III performance has been validated and the instrument has been radiometrically calibrated using TRW's multispectral test bed. This paper discusses the characterization and calibration process, results of the measurements, and instrument artifacts of potential interest to data users.

Paper Details

Date Published: 13 November 1996
PDF: 11 pages
Proc. SPIE 2819, Imaging Spectrometry II, (13 November 1996); doi: 10.1117/12.258060
Show Author Affiliations
Mark A. Folkman, TRW Space & Electronics Group (United States)
Darrell A. Gleichauf, TRW Space & Electronics Group (United States)
Charles T. Willoughby, TRW Space & Electronics Group (United States)
Sveinn Thordarson, TRW Space & Electronics Group (United States)
Bill H. Quon, TRW Space & Electronics Group (United States)


Published in SPIE Proceedings Vol. 2819:
Imaging Spectrometry II
Michael R. Descour; Jonathan Martin Mooney, Editor(s)

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