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Archive for September 3rd, 2013

Radar Image Interpretation

Tuesday, September 3rd, 2013

Synthetic aperture radar (SAR) sensors “see” the ground in a different way from optical sensors such as SPOT, aerial cameras, or the human eye; therefore, radar images have certain characteristics that are fundamentally different from those in images collected by optical sensors. The key then to understanding and interpreting radar images lies in the answer to this question: What happens to the electromagnetic energy in a radar pulse as it meets the terrain being imaged, interacts with the terrain, is recorded by the radar sensor, and subsequently is processed to generate a radar image? Answering this question is not easy. However, with the resolution of SAR sensors are getting better and better, details provided in, for example a 50 cm pixel, help our eyes to discern topographic features more readily than ever before.


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