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  • 1
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    The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) (1993)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: AVIRIS is a facility consisting of a flight system, a ground data system, a calibration facility, and a full-time operations team. The facility was developed by JPL under funding from NASA. NASA also provides funding for operations and maintenance. The flight system is a whisk-broom imager that acquires data in 224 narrow, contiguous spectral bands covering the solar reflected portion of the electromagnetic spectrum. It is flown aboard the NASA high altitude ER-2 research aircraft. The ground data system is a facility dedicated to the processing and distribution of data acquired by AVIRIS. It operates year round at JPL. The calibration facility consists of a calibration laboratory at JPL and a suite of field instruments and procedures for performing inflight calibration of AVIRIS. A small team of engineers, technicians, and scientists supports a yearly operations schedule that includes 6 months of flight operations, 6 months of routine ground maintenance of the flight system, and year-round data processing and distribution. Details of the AVIRIS system, its performance history, and future plans are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Remote Sensing of Environment (ISSN 0034-4257); 44; 2-3; p. 127-143.
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Current instrument status of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) (1991)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: An upgraded version of AVIRIS, an airborne imaging spectrometer based on a whiskbroom-type scanner coupled via optical fibers to four dispersive spectrometers, that has been in operation since 1987 is described. Emphasis is placed on specific AVIRIS subsystems including foreoptics, fiber optics, and an in-flight reference source; spectrometers and detector dewars; a scan drive mechanism; a signal chain; digital electronics; a tape recorder; calibration systems; and ground support requirements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: In: Infrared technology XVII; Proceedings of the Meeting, San Diego, CA, July 22-26, 1991 (A93-38376 15-35); p. 164-175.
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Gyrotron development for space power beaming (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The use of a gyrotron for space power beaming, especially in the form of a lunar orbiting power station is discussed. The advantages of phased array power beaming, output power, and the design of a quasi-optical gyrotron are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center, Second Beamed Space-Power Workshop; p 139-158
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    A system overview of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The AVIRIS instrument has been designed to do high spectral resolution remote sensing of the Earth. Utilizing both silicon and indium antimonide line array detectors, AVIRIS covers the spectral region from 0.41 to 2.45 microns in 10-nm bands. It was designed to fly aboard NASA's U-2 and ER-2 aircraft, where it will simulate the performance of future spacecraft instrumentation. Flying at an altitude of 20 km, it has an instantaneous field of view of 20 m and views a swath over 10 km wide. With an ability to record 40 minutes of data, it can, during a single flight, capture 500 km of flight line.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). A Description of the Sensor, Ground Data Processing Facility, Laboratory Calibration, and First Results; Airborne Visible(Inf
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    A system overview of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The AVIRIS instrument has been designed to do high spectral resolution remote sensing of the earth. Utilizing both silicon and indium antimonide line array detectors, AVIRIS covers the spectral region from 0.41 to 2.45 microns in 10-nm bands. It was designed to fly aboard NASA's U-2 and ER-2 aircraft, where it will simulate the performance of future spacecraft instrumentation. Flying at an altitude of 20 km, it has an instantaneous field of view of 20 m and views a swath over 10 km wide. With an ability to record 40 minutes of data, it can, during a single flight, capture 500 km of flight line.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Imaging Spectroscopy II; Aug 20, 1987 - Aug 21, 1987; San Diego, CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Evolution of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) flight and ground data processing system (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The modifications made to both the AVIRIS instrument and the data processing facility since the instrument made its initial flight in the summer of 1987 are described. Historical development of the data system is discussed and attention is given to enhancements to instrument stability and noise performance. AVIRIS data facility objectives include rapid and automated decommutation and archiving of data, the ability to assess the quality of the data and health of the instrument, and the provision of an automated procedure for applying radiometric corrections to the data and providing responsive processing of data requests from investigators. The modifications described have resulted in an overall radiometric stability of better than 10 percent, with stability of only a few percent during a single flight.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Imaging Spectroscopy of the Terrestrial Environment; Apr 16, 1990 - Apr 17, 1990; Orlando, FL; United States
    Format: text
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    NASA TECHNICAL REPORTS
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