Evaluation of RISAT-1 compact polarization data for calibration

  title={Evaluation of RISAT-1 compact polarization data for calibration},
  author={Y. S. Rao and Peter Meadows and Vineet Kumar},
  journal={2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)},
Synchronous with RISAT-1 and RADARSAT-2 passes, corner reflectors (CR) were mounted for the evaluation of radiometric calibration of RISAT-1 compact polarimetric SAR data. Based on the CRs response on SLC images, RISAT-1 calibration constant, PSLR/ISLR, resolution, channel imbalance and cross-talk were analyzed and compared with that of product specifications. A difference of 0.5 to 1.5 dB is observed between product and estimated calibration constant K. The resolution and PSLR/ISLR are better… CONTINUE READING
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