Generation of three-dimensional deformation maps from InSAR data using spectral diversity techniques

Erten E., REIGBER A., HELLWICH O.

ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, vol.65, no.4, pp.388-394, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 65 Issue: 4
  • Publication Date: 2010
  • Doi Number: 10.1016/j.isprsjprs.2010.04.005
  • Journal Name: ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.388-394
  • Keywords: Spectral diversity, DInSAR, 3D deformation analysis, Weighted least squares
  • Istanbul Technical University Affiliated: No

Abstract

The capability of DInSAR (Differential Interferometric SAR) for precise large-scale deformation analysis has been shown in various case studies. Generally, DInSAR possesses a high potential for monitoring deformation, but only the velocity component parallel to the line-of-sight direction can be measured. An alternative approach, capable to retrieve the deformation velocity in both range and azimuth direction, is the so-called spectral diversity technique. Spectral diversity is based on a phase comparison between different sub-aperture interferograms of the scene and can generally be regarded as a high-performance technique for estimating the mis-registration between complex SAR images.