Publisher:Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020
Citation:IGARSS 2020 - IEEE International Geoscience and Remote Sensing Symposium, Waikoloa, Hawaii, July 19-24, 2020
Abstract:
Airborne SAR data are often challenging to analyze due tothe limited accuracy of the platform motion measurements.In interferometric scenarios, even small residual motion er-rors cause undesirable artifacts in the interferometric phaseand geometric registration of image pairs. Various calibrationtechniques have been developed, often exploiting spectral di-versity in some way. The UAVSAR L-band system has imple-mented a new operating mode where multiple images are ac-quired simultaneously at different azimuth squint angles, pro-viding enhanced opportunities for motion calibration. Thispaper describes this imaging mode and the residual motioncalibration technique developed for these special data sets.
