Impact of scene changes during data acquisition in Fourier spectroscopy

The impact of changes of the spectral radiance in a Fourier transform spectrometer's field of view (FOV) during recording time of an interferogram is examined. Particularly systematic changes, with a time constant which is in the order of the time required to record one interferogram, are of in...

Full description

Saved in:
Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2005-06, Vol.92 (4), p.447-455
Main Authors: Kick, Hermann, Tank, Volker, Lindermeir, Erwin
Format: Article
Language:English
Subjects:
Airborne measurements
Fourier spectroscopy
Infrared remote sensing
Scene changes
Spectral changes during data acquisition
Temporal scene variability
Time dependent infrared spectra
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The impact of changes of the spectral radiance in a Fourier transform spectrometer's field of view (FOV) during recording time of an interferogram is examined. Particularly systematic changes, with a time constant which is in the order of the time required to record one interferogram, are of interest here. Both an analytic and a simulative approach is made to examine the impact on the measured spectrum. Airborne measurements of fire scenes are a typical example where changes of spectral radiance during data acquisition time are inevitable. In such cases, flight velocity causes the scene in the spectrometer's FOV to change continuously, and the scene elements (fire, for example) might be expected to be dynamical even by themselves.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2004.07.032