8 February 2002 Wide-field-of-view imaging spectrometer (WFIS): from a laboratory demonstration to a fully functional engineering model
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This paper presents the status of the ongoing development of the laboratory Wide Field-of-view Imaging Spectrometer (WFIS) and the new engineering model WFIS. The design is shown to provide a unique solution to wide field hyperspectral imaging with several advantages over traditional scanning systems. Tests of the engineering model, funded under NASA's Instrument Incubator program, take the WFIS to the next level of technology readiness. The WFIS is based on a patented optical design intended for optical remote sensing of the earth and the earth's atmosphere in the hyperspectral-imaging mode. The design of the laboratory spectrometer and the initial test results obtained with it were presented at the 1999 SPIE Annual Meeting in Denver, Colorado (3759-32). Since that time, the laboratory unit has undergone several upgrades in the optical path and continues to be a pathfinder for the new engineering model instrument. The WFIS engineering model incorporates several improvements to provide increased wavelength coverage from the UV to the NIR and an increase in the field-of-view coverage to 120 degrees. It differs most significantly from the laboratory unit in that it is designed for flight. The status of the hardware, software, and the assembly of the engineering WFIS is discussed as well as an overview of the planned demonstration tests.
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Robert E. Haring, Robert E. Haring, Randy Pollock, Randy Pollock, Richard M. Cross, Richard M. Cross, Terri Greenlee, Terri Greenlee, } "Wide-field-of-view imaging spectrometer (WFIS): from a laboratory demonstration to a fully functional engineering model", Proc. SPIE 4486, Infrared Spaceborne Remote Sensing IX, (8 February 2002); doi: 10.1117/12.455123; https://doi.org/10.1117/12.455123

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