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 f
• Data Preparation – Acquire the images – Identify a subsection of the image or create a mosaic, if needed • Preprocessing the Image – Radiometric calibration – Filter application to reduce speckle – Geometric Calibration • Processing the Image – Generate a map through threshold, supervised, or non-supervised approaches
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