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Proceedings Paper

NGST longwave hyperspectral imaging spectrometer system characterization and calibration
Author(s): Karen E Yokoyama; Harold Miller; Ted Hedman; Sveinn Thordarson; Miguel Figueroa; John Shepanski; Peter J. Jarecke; Steven Lai
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Paper Abstract

Northrop Grumman Space Technology (NGST) has developed and tested a Long-wave Hyperspectral Imaging Spectrometer (LWHIS) that operates in the 8 to 12.5 micron band. An overview of the system design has been described elsewhere. This paper describes the system characterization and radiometric calibration of this instrument using NGST’s Long-wave Hyperspectral Test Facility which uses a 1375K globar source assembly, a monochromator, a collimator and a fine pointing mirror to provide image quality and FPA alignment data. Image quality characterization results presented here include measurement of the instrument’s Modulation Transfer Function (MTF), spatial co-registration of spectral channels (spectral smile), cross-track spectral error (spatial smile), and spectral calibration. Radiometric calibration results for laboratory targets are also presented.

Paper Details

Date Published: 7 January 2004
PDF: 13 pages
Proc. SPIE 5159, Imaging Spectrometry IX, (7 January 2004); doi: 10.1117/12.505840
Show Author Affiliations
Karen E Yokoyama, Northrop Grumman Space Technology (United States)
Harold Miller, Northrop Grumman Space Technology (United States)
Ted Hedman, Northrop Grumman Space Technology (United States)
Sveinn Thordarson, Northrop Grumman Space Technology (United States)
Miguel Figueroa, Northrop Grumman Space Technology (United States)
John Shepanski, Northrop Grumman Space Technology (United States)
Peter J. Jarecke, Northrop Grumman Space Technology (United States)
Steven Lai, Northrop Grumman Space Technology (United States)


Published in SPIE Proceedings Vol. 5159:
Imaging Spectrometry IX
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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