Spectrometer channel characterization for the Airborne Remote Earth Sensor (ARES)

James J. Lisowski; Michelle A. Najarian

doi:10.1117/12.257170

6 November 1996 Spectrometer channel characterization for the Airborne Remote Earth Sensor (ARES)

James J. Lisowski, Michelle A. Najarian

Proceedings Volume 2821, Hyperspectral Remote Sensing and Applications; (1996) https://doi.org/10.1117/12.257170
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The ARES (Airborne Remote Earth Sensing) program employs a dual mode instrument for the collection of calibrate IR data. The instrument can be used as either an imaging radiometer (Staring Radiometer), or as an imaging spectrometer (Spatially Scanning Dispersive Spectrometer (SSDS)). In the SSDS mode, the instrument is capable of resolving 75 bands in the 2 micrometers to 6 micrometers region. Spectral separation is achieved by spatial dispersion of incoming radiation across the FPA using a bi-prism. As with other instruments of this type, mechanical and optical imperfections produce errors in spectral registration and radiometric calibrations; non-uniform dispersion by optics and a finite size for the FPA elements produce imperfect bandpass characteristics, most notably channel crosstalk. The methods developed at Lockheed-Martin Advanced Technology Center, the sensor contractors, and at SciTec to characterize the spectral response of each spectrometer channel using a scanned monochromator and normalization algorithms will be discussed.

Citation Download Citation

James J. Lisowski and Michelle A. Najarian "Spectrometer channel characterization for the Airborne Remote Earth Sensor (ARES)", Proc. SPIE 2821, Hyperspectral Remote Sensing and Applications, (6 November 1996); https://doi.org/10.1117/12.257170

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