Basic Principles and Current Issues of Sar Interferometry

Sar Interferometry: Principles, Processing, and Perspectives

The principles of SAR interferometry and interferogram generation, in particular phase unwrapping and geocoding, are described. Current issues of SAR interferometry are discussed: atmospheric effects on spaceborne repeat-pass interferometry limiting the accuracy and reliability of Digital Elevation Models (DEM), the Shuttle Radar Topography Mission (SRTM) resulting in a globally homogeneous DEM...

Comparison of Local and Non-Local Methods in Covariance Matrix Estimation by Using Multi-baseline SAR Interferometry and Height Extraction for Principal Components with Maximum Likelihood Approach

By today, the technology of synthetic aperture radar (SAR) interferometry (InSAR) has been largely exploited in digital elevation model (DEM) generation and deformation mapping. Conventional InSAR technique exploits two SAR images acquired from slightly different angles, in which the information of elevation and deformation can be captured through processing of the phase difference of the image...

Introduction: BACKGROUND, GOAL AND CONTENT OF THE LECTURE SERIES ON POLARIMETRIC SAR INTERFEROMETRY

Scientists and engineers already engaged in the fields of radar surveillance, reconnaissance and scattering measurements, for instance, generally gain their specialist knowledge in Polarimetry by working through scientific papers and specialised literature available on the subject. Usually, this is a time consuming exercise, as it is difficult for a newcomer to collate material especially on Po...

Polarimetric Interferomtry

SAR polarimetry makes use of the polarization dependent scattering response of each pixel within the imaged area. The polarimetric response is highly sensitive to the scattering mechanism of a pixel. SAR interferometry is sensitive to the location of a pixel and its scattering geometry. The location of a pixel can be measured by the phase difference between two coherent SAR images using SAR int...

InSAR Principles: Guidelines for SAR Interferometry Processing and Interpretation