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Applied Optics

Applied Optics


  • Vol. 41, Iss. 27 — Sep. 20, 2002
  • pp: 5691–5701

Modeling the noise equivalent radiance requirements of imaging spectrometers based on scientific applications

Daniel Schläpfer and Michael Schaepman  »View Author Affiliations

Applied Optics, Vol. 41, Issue 27, pp. 5691-5701 (2002)

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The derivation of radiometric specifications for imaging spectrometers from the visible to the short-wave infrared part of the spectrum is a task based on the requirements of potential scientific applications. A method for modeling the noise equivalent radiance at-sensor level is proposed. The model starts with surface reflectance signatures, transforms them to at-sensor signatures, and combines signatures of various applications with regard to performance requirements. The wavelength-dependent delta radiances are then derived at predefined radiance levels by use of a model of the sensor performance. The model is applied with regard to the upcoming Airborne Prism Experiment imaging spectrometer system. A combination of various potential application disciplines forms the basis of the experiment. The results help in the definition of radiometric levels for laboratory calibration of the noise equivalent radiance levels, the quantization of the signal, and the spectral range of an instrument to be designed.

© 2002 Optical Society of America

OCIS Codes
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.1310) Remote sensing and sensors : Atmospheric scattering
(300.6170) Spectroscopy : Spectra
(300.6190) Spectroscopy : Spectrometers

Original Manuscript: January 7, 2002
Revised Manuscript: May 30, 2002
Published: September 20, 2002

Daniel Schläpfer and Michael Schaepman, "Modeling the noise equivalent radiance requirements of imaging spectrometers based on scientific applications," Appl. Opt. 41, 5691-5701 (2002)

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