Title
On the Relationship Between Double Bounce and the Orientation of Buildings in VHR SAR Images
Abstract
In this letter, we study empirically the relation between the double-bounce effect of buildings in very high resolution (VHR) synthetic aperture radar (SAR) and the orientation angle for two different ground materials (i.e., asphalt and grass) by analyzing two different TerraSAR-X VHR spaceborne SAR images. Furthermore, we compare our empirical results with the simulations obtained using theoretical electromagnetic models. In order to deal with slightly rough surfaces, we also present a novel model for double-bounce scattering based on the small-perturbation method. We show that the double-bounce effect results in different power signatures, depending on the type of the building and the surrounding ground properties. Finally, we discuss the reliability of theoretical models for predicting the double-bounce power for the analyzed data sets. The models can predict the general behavior of the double bounce but lack in calculating the accurate double-bounce radar cross section reliably.
Year
DOI
Venue
2011
10.1109/LGRS.2010.2097580
Geoscience and Remote Sensing Letters, IEEE
Keywords
Field
DocType
perturbation theory,radar imaging,remote sensing by radar,spaceborne radar,synthetic aperture radar,TerraSAR-X VHR spaceborne SAR images,double-bounce effect,double-bounce radar cross section,double-bounce scattering,ground materials,perturbation method,radar remote sensing,synthetic aperture radar,very high resolution,Double bounce,radar remote sensing,synthetic aperture radar (SAR),urban areas,very high geometrical resolution images
Data set,Radar imaging,Electromagnetic model,Synthetic aperture radar,Remote sensing,Theoretical models,Scattering,Surface roughness,Mathematics,Radar cross-section
Journal
Volume
Issue
ISSN
8
4
1545-598X
Citations 
PageRank 
References 
12
0.83
7
Authors
4
Name
Order
Citations
PageRank
Adamo Ferro1898.65
Dominik Brunner217913.67
Lorenzo Bruzzone34952387.72
Guido Lemoine422736.45