Radar-coding in the application of SAR image classification in the district of glaciers

In this paper, a new way of integration of SAR geometric correction and radiometric rectification named radar-coding method has been put forward for the improvement of accuracy and efficiency in SAR image classification in glacierized district. A radar-coding look up table has been constructed based on geometric correction, which can be used for generating the simulated SAR. Then radiometric rectification can be completed based on simulated SAR. The study in Dongkemadi Glacier Basin located in the middle of the Thang-la Mountain Range of Tibetan Plateau of China shows that: (1)This new method has advantages of eliminate the geometric and radiometric distortions in glacierized district; (2)Accuracy of classification is at least 80% due to the confusion matrix.