Performance of the AHI airborne thermal infrared hyperspectral imager

Paul G. Lucey; Tim J. Williams; Michael E. Winter; Edwin M. Winter

doi:10.1117/12.406587

15 November 2000 Performance of the AHI airborne thermal infrared hyperspectral imager

Paul G. Lucey, Tim J. Williams, Michael E. Winter, Edwin M. Winter

Proceedings Volume 4132, Imaging Spectrometry VI; (2000) https://doi.org/10.1117/12.406587
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The AHI sensor consists of a long-wave infrared pushbroom hyperspectral imager and a boresighted 3- color visible high resolution CCD linescan camera. The system used a background suppression system to achieve good noise characteristics (less than 1µfl NESR). Work with AHI has shown the utility of the longwave infrared a variety of applications. The AHI system has been used successfully in the detection of buried land mines using infrared absorption features of disturbed soil. Gas detection was also shown feasible, with gas absorption being clearly visible in the thermal IR. This allowed the mapping of a gas release using a matched filter. Geological mapping using AHI can be performed using the thermal band absorption features of different minerals. A large-scale geological map was obtained over a dry lake area in California using a mosaic of AHI flightlines, including mineral spectra and relative abundance maps.

Citation Download Citation

Paul G. Lucey, Tim J. Williams, Michael E. Winter, and Edwin M. Winter "Performance of the AHI airborne thermal infrared hyperspectral imager", Proc. SPIE 4132, Imaging Spectrometry VI, (15 November 2000); https://doi.org/10.1117/12.406587

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