Publications

Xu, HY; Huang, WX; Si, XL; Song, QJ; Li, X; Xu, WW; Ma, Y; Zhang, LM (2023). Radiometric cross-calibration of Sentinel-2B MSI with HY-1C SCS based on the near simultaneous imaging of common ground targets. OPTICS EXPRESS, 31(3), 3619-3637.

Abstract
To simplify the cross-calibration process accuracy, this paper proposes a cross-calibration Multi-Spectral Instrument (MSI) carried by Sentinel that is, the satellite calibration spectrometer (SCS) sensor and establishes the calibration process. SCS and MSI spectral channels is performed by data to eliminate the difference in band settings cross-calibration coefficients. The SNO-x inherited method is used as a prediction method to carry low-latitude regions, which improves the cross-calibration range of calibration. The cross-calibration coefficients were obtained by processing the earth observation 2019. Then, the cross-calibration coefficients and other ground objects with different reflectance, cross-calibration results are evaluated with the Moderate (MODIS) carried by Terra as a reference. To improve band adjustment factor between the corresponding the measured reflectance of MODIS based on the directly obtained by processing the MSI image reflectance obtained based on the cross-calibration reflectance, and the reflectance corrected by the used as the MODIS-calculated reflectance. The relative error (RMSRE) between the MODIS-calculated reflectance is 2.16% and that the mean RMSRE and the MSI-measured reflectance is 3.05%, indicating calibration coefficients is closer to the MODIS-calculated source in the cross-calibration is analyzed, and 4.03%, indicating that SCS can be used as a reference (c) 2023 Optica Publishing Group under the terms of the #479445 Journal (c) 2023 Received 27 Oct 2022; revised 19

DOI:
10.1364/OE.479445

ISSN: