During the flight test of a Raytheon radar sensor in West Texas through 2007, Raytheon collected a wide variety of SAR
images that showed evidence of atmospheric lensing. We have characterized the type of image artifacts that lensing
creates, as well as the circumstances under which they occur. We also present evidence of a correlation between the
artifacts and the presence of a humidity gradient detected in radiosonde measurements. The purpose of this presentation
will be to show how these effects can be recognized in SAR images as well as indications of when they will be most
severe.
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