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The calibration and validation team of the Korea Aerospace Research Institute has calibrated and validated the image data of the KOMPSAT-2 since the launch of KOMPSAT-2 on July 28, 2006. The asymmetric phenomenon of the point spread function of the KOMPSAT-2 image data is evident in both the along and the across direction, most likely because KOMPSAT-2 has a 1m ground sample distance high-resolution...
Radiometric Accuracy of SAR Image is one of the most important requirements for KOMPSAT (Korea Multi-Purpose SATellite)-5 and it is the main objective of calibration and validation procedure. The radiometric calibration can be divided into relative and absolute radiometric calibration. Point targets whose RCS (Radar Cross Section) can be evaluated with the close-form equation are required to perform...
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