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Proceedings Paper

A generalized performance model for spatial interferometric hyperspectral imagers
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Paper Abstract

We produced a one-dimensional model of the signal to noise performance of Fourier Transform hyperspectral imagers using microbolometer array detectors. Our prior work could predict the peak response of such sensors, but not a measured fall-off in SNR at short and long wavelengths. We improved the fidelity of the model by including necessary wavelength dependent terms. We then tested the model using the measured performance of an FTIR, and critical measurements of the relative wavelength responsivity and NEDT of the microbolometer camera, and the wavelength response of the beamsplitter modulation. The model agrees with measurement with 15%, and the difference is consistent with the lack of spatial nonuniformity in the model. We also present similar analysis using the interferometer and a cooled mercury cadmium telluride camera showing that high performance can be obtained if dark currents can be reduced relative to commercial broadband IR cooled cameras.

Paper Details

Date Published: 13 May 2010
PDF: 10 pages
Proc. SPIE 7695, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI, 76951X (13 May 2010); doi: 10.1117/12.849979
Show Author Affiliations
Paul G. Lucey, Univ. of Hawai'i (United States)
Eugene Tsiang, Spectrum Photonics, Inc. (United States)

Published in SPIE Proceedings Vol. 7695:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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