Laboratory test results for an airborne ASTER simulator

Teruya Ezaka; Yoshiaki Kannari; Franklin P. Mills; Hiroshi Watanabe; Masaharu Sano; Sheng-Huei Chang

doi:10.1117/12.152848

25 August 1993 Laboratory test results for an airborne ASTER simulator

Teruya Ezaka, Yoshiaki Kannari, Franklin P. Mills, Hiroshi Watanabe, Masaharu Sano, Sheng-Huei Chang

Proceedings Volume 1939, Sensor Systems for the Early Earth Observing System Platforms; (1993) https://doi.org/10.1117/12.152848
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

An airborne ASTER simulator (AAS) is being developed by the Geophysical Environmental Research Corporation (GER) to study land surface temperature and emittance in the thermal infrared. Laboratory tests in October 1992 at NASA's Stennis Space Center (SSC) measured the AAS's spectral, approximate NEdT, and approximate spatial response characteristics. The spectral FWHM for most channels is smaller than 0.3 micrometers ; the NEdT for most TIR channels is better than 0.4 K; and the nominal IFOV is 5 mrad. Flight data was collected over Cuprite and Goldfield, Nevada and near Valencia, California in November 1992. The silicified and opalized zones at Cuprite could be discriminated using decorrelation-stretch images. AAS decorrelation-stretch images agree, qualitatively, with data from NASA's thermal infrared mapping spectrometer (TIMS). These results indicate the AAS may be a good tool for remote sensing studies of geological materials. Lower noise detector arrays and linear variable (optical) filters for the TIR channels will be tested in flights over Cuprite, Nevada later this year. These and other improvements may reduce the NEdT and improve the signal-to-noise ratio.

Citation Download Citation

Teruya Ezaka, Yoshiaki Kannari, Franklin P. Mills, Hiroshi Watanabe, Masaharu Sano, and Sheng-Huei Chang "Laboratory test results for an airborne ASTER simulator", Proc. SPIE 1939, Sensor Systems for the Early Earth Observing System Platforms, (25 August 1993); https://doi.org/10.1117/12.152848

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