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Proceedings Paper

Vibration-induced tilt error model for aircraft interferometer data: sample position errors
Author(s): Erik R. Olson; Henry E. Revercomb; Robert O. Knuteson; Hugh Benjamin Howell; Mark W. Werner; Raymond K. Garcia
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Paper Abstract

The Scanning High-resolution Interferometer Sounder (S-HIS) instrument is a cross track scanning Fourier-transform interferometer with 0.5 wavenumber resolution. It is comprised of three detectors, which are the shortwave (SW), midwave (MW), and longwave (LW). Vibration experienced during flight can cause a significant level of spectrally correlated noise in the calibrated spectra. The S-HIS instrument has a wavefront tilt measurement system that monitors vibration induced optical tilts, which both reduces the interferometric noise and makes it possible to remove it with post processing. This two-axis tilt measurement system records small changes in the wavefront angles during the data collection of both scene and blackbody interferograms. The amplitude-modulation errors dominate the SW band while sample-position errors are found in the LW and MW bands. Here we show that the sample-position errors can be removed from the final calibrated radiances.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5655, Multispectral and Hyperspectral Remote Sensing Instruments and Applications II, (20 January 2005); doi: 10.1117/12.579071
Show Author Affiliations
Erik R. Olson, Univ. of Wisconsin/Madison (United States)
Henry E. Revercomb, Univ. of Wisconsin/Madison (United States)
Robert O. Knuteson, Univ. of Wisconsin/Madison (United States)
Hugh Benjamin Howell, Univ. of Wisconsin/Madison (United States)
Mark W. Werner, Univ. of Wisconsin/Madison (United States)
Raymond K. Garcia, Univ. of Wisconsin/Madison (United States)

Published in SPIE Proceedings Vol. 5655:
Multispectral and Hyperspectral Remote Sensing Instruments and Applications II
Allen M. Larar; Makoto Suzuki; Qingxi Tong, Editor(s)

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