The negative alpha filter: a new Processing technique for polarimetric SAR interferometry

Author

Cloude, Shane R. ; Williams, Mark L.

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Adelaide, SA, Australia

Volume

2

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

187

Lastpage

191

Abstract

In this letter we develop a new concept, the negative alpha filter, which we suggest has application for quantitative estimation of surface parameters beneath vegetation using polarimetric synthetic aperture radar (SAR) interferometry (POLInSAR). We first derive the filter and then validate it using simulations of L-band coherent forest scattering. We then show initial results of applying the filter to airborne data from the German Aerospace Center´s E-SAR L-band sensor.

Keywords

geophysical signal processing; radar polarimetry; radiowave interferometry; remote sensing by radar; synthetic aperture radar; vegetation mapping; E-SAR L-band sensor; German Aerospace Center; L-band coherent forest scattering; POLInSAR; negative alpha filter; polarimetric SAR interferometry; radar polarimetry; radar remote sensing; surface parameters estimation; synthetic aperture radar; vegetation; Coherence; Entropy; Filters; Interferometry; L-band; Parameter estimation; Polarization; Radar scattering; Synthetic aperture radar; Vegetation mapping; Polarimetric synthetic aperture radar interferometry (POLInSAR); radar polarimetry; radar remote sensing; synthetic aperture radar (SAR);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2005.846006

Filename

1420302