Transcription of SAR Processing and Data Analysis - NASA
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SAR Processing and Data Analysis - NASA
National Aeronautics and Space Administration ARSET Applied Remote Sensing Training @NASAARSET SAR Processing and data Analysis Erika Podest National Aeronautics and Space Administration 2 Applied Remote Sensing Training Program Learning Objective Sentinel data image preprocessing SAR imagery to classify land and water National Aeronautics and Space Administration 3 Applied Remote Sensing Training Program Outline Background , Opening, and Displaying the data Sentinel-1 Background National Aeronautics and Space Administration 5 Applied Remote Sensing Training Program Characteristics of SAR Images from Different Satellites National Aeronautics and Space Administration 6 Applied Remote Sensing Training Program Sentinel-1: Modes of Acquisition Wide Swath for monitoring oceans & coasts 400 km swath, 25 x 40 m spatial resolution Mode special order only 80 km swath, 5 x 5 m spatial resolution Mode routine collection for the ocean 20 km swath, 5 x 5 m spatial resolution Wide Swath routine collection for land 250 km swath, 5 x 20 m spatial resolution National Aeronauti
• Speckle is part of radar images and makes interpretation difficult because the “salt and pepper” effect corrupts information about the surface – There are many techniques to extract radar information from images that have a lot of speckle – You can use speckle filters, or multilook the image. We will use multilook 3.
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