Along-Scan Bias Of Fengyun-3c Microwave Radiation Imager
2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)(2019)
摘要
In this study, along-scan performance of FengYun-3C microwave radiation imager (MWRI) is examined utilizing one-year data over ocean. Generally-good uniformity along azimuth scan position is found with a TB bias less than 1 K at the edge-of-scan. However, discernible errors can be still found and the behaviors of the scan-position-dependent bias are different for ascending and descending phases of the orbits. It is thus suggested that descending and ascending passes should be taken into account, separately, when correcting antenna pattern in calibration processes.
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关键词
along-scan bias, microwave imager
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