Interferometric calibration for DEM enhancing and system characterization in single pass SAR interferometry

Author

Mallorquí, J.J. ; Rosado, I. ; Bara, M.

Author_Institution

Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

1

fYear

2001

fDate

2001

Firstpage

404

Abstract

In this paper the comparison between different methods to calibrate a digital elevation map (DEM) generated from airborne differential SAR interferometry will be presented. The traditional methods applied phase ramp corrections along the swath derived from the errors in some ground control points (GCP) to improve the DEM. A more advanced technique is proposed based on the sensitivity equations, which are derived by differentiating the basic location equations with respect to the different parameters of the error model. The behavior of the different techniques have been tested with both synthetic and real interferometric SAR data

Keywords

airborne radar; calibration; geodesy; geophysical techniques; remote sensing by radar; synthetic aperture radar; terrain mapping; topography (Earth); DEM; SAR interferometry; airborne radar; basic location equations; differential SAR interferometry; digital elevation map; digital elevation model; enhancement; geodesy; geophysical measurement technique; ground control points; interferometric calibration; land surface topography; phase ramp corrections; radar remote sensing; sensitivity equations; single pass method; swath; synthetic aperture radar; system characterization; terrain mapping; Aircraft; Calibration; Differential equations; Digital elevation models; Error correction; Geometry; Interferometry; Postal services; Stability; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.976172

Filename

976172