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7 September 2018 An improved algorithm for VIIRS Day/Night Band (DNB) high gain stage (HGS) dark offset determination
Yalong Gu, Sirish Uprety, Slawormir Blonski, Bin Zhang, Changyong Cao
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Proceedings Volume 10764, Earth Observing Systems XXIII; 107641J (2018) https://doi.org/10.1117/12.2322923
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
With comprehensive analysis of the VIIRS DNB on-board calibrator blackbody (OBCBB) data and Earth View (EV) data, it is shown that the DNB OBCBB data can only track the dark current component of the DNB HGS EV dark offset. The DNB observation of deep space during the spacecraft pitch maneuver was also contaminated by star lights. With these acquired knowledge, we propose an improved algorithm for determining the DNB HGS dark offset that is both free from light contamination and capable of tracking drifts continuously. The new algorithm is expected to improve the DNB radiometric performance at low radiance level.
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Yalong Gu, Sirish Uprety, Slawormir Blonski, Bin Zhang, and Changyong Cao "An improved algorithm for VIIRS Day/Night Band (DNB) high gain stage (HGS) dark offset determination", Proc. SPIE 10764, Earth Observing Systems XXIII, 107641J (7 September 2018); https://doi.org/10.1117/12.2322923
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KEYWORDS
Sensors
Calibration
Airglow
Detection and tracking algorithms
Charge-coupled devices
Satellites
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