In-scene wavelength calibration of the airborne hyperspectral imaging sensor MAHI

Jeffrey L. Hall; Patrick F. Conforti; Katherine M. Saad

doi:10.1117/12.2321598

18 September 2018 In-scene wavelength calibration of the airborne hyperspectral imaging sensor MAHI

Jeffrey L. Hall, Patrick F. Conforti, Katherine M. Saad

Proceedings Volume 10768, Imaging Spectrometry XXII: Applications, Sensors, and Processing; 1076809 (2018) https://doi.org/10.1117/12.2321598
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

We describe an in-scene technique for accurate wavelength calibration of our airborne MAHI (Mid-infrared Airborne Hyperspectral Imager) sensor using modelled atmospheric spectral features. MAHI operates in the 3.3 to 5.4 μm region with a spectral sampling of 3.3 nm. The new technique significantly improves the accuracy over a lab technique using plastic film spectral features. We demonstrate the technique’s performance against: poorly known spectral response function; error in the initial wavelength grid guess; and deviation of the measured pixel spectra from the reference atmospheric spectrum. Performance of the new calibration technique for a recent airborne campaign in the Los Angeles area is demonstrated.

Citation Download Citation

Jeffrey L. Hall, Patrick F. Conforti, and Katherine M. Saad "In-scene wavelength calibration of the airborne hyperspectral imaging sensor MAHI", Proc. SPIE 10768, Imaging Spectrometry XXII: Applications, Sensors, and Processing, 1076809 (18 September 2018); https://doi.org/10.1117/12.2321598

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