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Thermal infrared spectral imager for airborne science applications

Show simple item record Johnson, William R. Hook, Simon J. Mouroulis, Pantazis Wilson, Daniel W. Gunapala, Sarath D. Hill, Cory J. Mumolo, Jason M. Eng, Bjorn T. 2015-07-01T17:15:44Z 2015-07-01T17:15:44Z 2009-03-07
dc.identifier.citation 2009 IEEE Aerospace Conference, Big Sky, Montana, March 7-14, 2009 en_US
dc.identifier.clearanceno 09-0176
dc.description.abstract An airborne thermal hyperspectral imager is under development which utilizes the compact Dyson optical configuration and quantum well infrared photo detector (QWIP) focal plane array. The Dyson configuration uses a single monolithic prism-like grating design which allows for a high throughput instrument (F/1.6) with minimal ghosting, stray-light and large swath width. The configuration has the potential to be the optimal imaging spectroscopy solution for lighter-than-air (LTA) vehicles and unmanned aerial vehicles (UAV) due to its small form factor and relatively low power requirements. The planned instrument specifications are discussed as well as design trade-offs. Calibration testing results (noise equivalent temperature difference, spectral linearity and spectral bandwidth) and laboratory emissivity plots from samples are shown using an operational testbed unit which has similar specifications as the final airborne system. Field testing of the testbed unit was performed to acquire plots of apparent emissivity for various known standard minerals (such as quartz). A comparison is made using data from the ASTER spectral library. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009 en_US
dc.subject imaging en_US
dc.subject spectroscopy en_US
dc.subject QWIP en_US
dc.subject LWIR en_US
dc.title Thermal infrared spectral imager for airborne science applications en_US
dc.type Preprint en_US

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