SAR amplitude calibration is performed prior to the selection of potential Persistent Scatterers (PS) to avoid amplitude variations due to sensor characteristics and viewing geometry. As only the interferometric phases of a small percentage of the radar pixels in an image is used in the PS-InSAR analysis, it is investigated if this time and storage space consuming step can be omitted. We present an integrated method which does not perform amplitude calibration explicitly, but integrates it into the PS point selection procedure for validation purposes by evaluating the hypothesis that a point would have been selected if all images were calibrated beforehand. Its performance assessment is based on coherent phase behavior of the selected potential PS and indicates that empirical calibration validation is an alternative for calibrating full images based on physical sensor parameters.
Original languageUndefined/Unknown
Title of host publicationHarmony between Man and Nature, 25-29 July 2005, Seoul Korea
EditorsAJ Gasiewski, Leung Tsang
Place of PublicationSeoul, Korea
PublisherIEEE International Geoscience and Remote Sensing Symposium
Pages5490-5493
Number of pages4
Publication statusPublished - 2005
Event2005 IEEE International Geoscience and Remote Sensing Symposium - Seoul, Seoul, Korea, Republic of
Duration: 25 Jul 200529 Jul 2005

Publication series

Name
PublisherIEEE International Geoscience and Remote Sensing Symposium

Conference

Conference2005 IEEE International Geoscience and Remote Sensing Symposium
Abbreviated titleIGARSS 2005
CountryKorea, Republic of
CitySeoul
Period25/07/0529/07/05

    Research areas

  • conference contrib. refereed, Conf.proc. > 3 pag

ID: 1811790