Polarimetric Dual-Baseline InSAR Building Height Estimation at L-Band

Author

Sauer, Stefan ; Ferro-Famil, Laurent ; Reigber, Andreas ; Pottier, Eric

Author_Institution

German Aerosp. Centre (DLR), Microwaves & Radar Inst. (HR), Wessling

Volume

6

Issue

3

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

408

Lastpage

412

Abstract

This letter generalizes a multibaseline interferometric synthetic aperture radar (InSAR) signal model to the polarimetric scenario. Based on this formulation, two high-performance spectral analysis techniques are adapted to process multibaseline Pol-InSAR observations. These new methods enhance the height estimation of scatterers by calculating optimal polarization combinations and allow the determination of their physical characteristics. Applying the proposed algorithms to urban environments, the building layover problem is analyzed by means of polarimetric dual-baseline InSAR measurements: the ground and building height are estimated. The techniques are validated using dual-baseline Pol-InSAR data acquired by DLR´s Experimental SAR (E-SAR) system over Dresden city.

Keywords

geophysical techniques; radar interferometry; radar polarimetry; remote sensing by radar; synthetic aperture radar; InSAR signal model; Pol-InSAR observation; building height estimation; building layover problem; high-performance spectral analysis technique; interferometric synthetic aperture radar; polarimetric dual-baseline InSAR measurement; urban environment; Multibaseline (MB) Pol-InSAR; polarimetric SAR interferometry (Pol-InSAR); polarimetric array signal processing techniques; synthetic aperture radar (SAR) urban remote sensing;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2009.2014571

Filename

4801686