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Radiometric and spectral stray light correction for the Portable Remote Imaging Spectrometer (PRISM) coastal ocean sensor

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dc.contributor.author Haag, Justin M.
dc.contributor.author Van Gorp, Byron E.
dc.contributor.author Mouroulis, Pantazis
dc.contributor.author Thompson, David R.
dc.date.accessioned 2020-03-23T19:15:13Z
dc.date.available 2020-03-23T19:15:13Z
dc.date.issued 2017-08-06
dc.identifier.citation 2017 SPIE Optics and Photonics, San Diego, California, August 6-10, 2017 en_US
dc.identifier.clearanceno CL#17-3987
dc.identifier.uri http://hdl.handle.net/2014/47751
dc.description.abstract The airborne Portable Remote Imaging Spectrometer (PRISM) instrument is based on a fast (F/1.8) Dyson spectrometer operating at 350-1050 nm and a two-mirror telescope combined with a Teledyne HyViSI 6604A detector array. Raw PRISM data contain electronic and optical artifacts that must be removed prior to radiometric calibration. We provide an overview of the process transforming raw digital numbers to calibrated radiance values. Electronic panel artifacts are first corrected using empirical relationships developed from laboratory data. The instrument spectral response functions (SRF) are reconstructed using a measurement-based optimization technique. Removal of SRF effects from the data improves retrieval of true spectra, particularly in the typically low-signal near-ultraviolet and near-infrared regions. As a final step, radiometric calibration is performed using corrected measurements of an object of known radiance. Implementation of the complete calibration procedure maximizes data quality in preparation for subsequent processing steps, such as atmospheric removal and spectral signature classification. 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, 2017 en_US
dc.title Radiometric and spectral stray light correction for the Portable Remote Imaging Spectrometer (PRISM) coastal ocean sensor en_US
dc.type Preprint en_US


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