JPL Technical Report Server

Topography-dependent motion compensation: application to UAVSAR data

Show simple item record Jones, Cathleen E. Hensley, Scott Michel, Thierry 2014-08-07T19:09:30Z 2014-08-07T19:09:30Z 2009-05-04
dc.identifier.citation IEEE RadarCon09, Pasadena, California, May 4-8, 2009 en_US
dc.identifier.clearanceno 09-0696
dc.description.abstract The UAVSAR L-band synthetic aperture radar system has been designed for repeat track interferometry in support of Earth science applications that require high-precision measurements of small surface deformations over timescales from hours to years. Conventional motion compensation algorithms, which are based upon assumptions of a narrow beam and flat terrain, yield unacceptably large errors in areas with even moderate topographic relief, i.e., in most areas of interest. This often limits the ability to achieve sub-centimeter surface change detection over significant portions of an acquired scene. To reduce this source of error in the interferometric phase, we have implemented an advanced motion compensation algorithm that corrects for the scene topography and radar beam width. Here we discuss the algorithm used, its implementation in the UAVSAR data processor, and the improvement in interferometric phase and correlation achieved in areas with significant topographic relief. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009 en_US
dc.subject surface deformation en_US
dc.title Topography-dependent motion compensation: application to UAVSAR data en_US
dc.type Presentation en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record



My Account