Multiple vicarious calibration using combined accuracy estimation

Stefan Livens; Sindy Sterckx; Wouter Dierckx; Stefan Adriaensen; Ils Reusen

doi:10.1117/12.865128

13 October 2010 Multiple vicarious calibration using combined accuracy estimation

Stefan Livens, Sindy Sterckx, Wouter Dierckx, Stefan Adriaensen, Ils Reusen

Proceedings Volume 7826, Sensors, Systems, and Next-Generation Satellites XIV; 782623 (2010) https://doi.org/10.1117/12.865128
Event: SPIE Remote Sensing, 2010, Toulouse, France

Abstract

Radiometric calibration often employs several independent vicarious calibration techniques to increase robustness and accuracy. We present a statistical methodology for combining results in a hierarchical scheme. The method, developed for the PROBA-V remote sensing mission, is based on handling and propagating of accuracies in accordance with the ISO GUM. Robust estimation is performed and outliers removed. Results over different sites are combined using weighted averaging. Weighted linear regression is used for temporal averaging. Results from different methods are combined taking into account possible bias. Finally an operational update strategy is proposed which relies on a significance criterion.

Citation Download Citation

Stefan Livens, Sindy Sterckx, Wouter Dierckx, Stefan Adriaensen, and Ils Reusen "Multiple vicarious calibration using combined accuracy estimation", Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 782623 (13 October 2010); https://doi.org/10.1117/12.865128

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