Simulation of unpolarized scattering in synthetic aperture radar images

Author

Tomiyasu, K.

Author_Institution

Lockheed Martin Corp., PA, USA

Volume

37

Issue

2

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

1176

Lastpage

1179

Abstract

With fully polarimetric synthetic aperture radar (SAR), images have been produced from copolarized, cross-polarized, and unpolarized (randomly polarized) scattered signals. Unpolarized scattering is simulated by a pair of equal-amplitude linearly polarized scatterers oriented orthogonally and located at the extremities of subpixels within a SAR resolution pixel. Calculations show that 10-30% of the returns from an arbitrary scene may be unpolarized

Keywords

backscatter; geophysical techniques; radar cross-sections; radar imaging; radar theory; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; SAR; backscatter; equal-amplitude linearly polarized scatterers; geophysical measurement technique; land surface; orthogonal orientation; radar imaging; radar remote sensing; radar scattering; spaceborne radar; synthetic aperture radar; terrain mapping; theory; unpolarized scattering; Azimuth; Image classification; Layout; Markov random fields; Maximum likelihood estimation; Parameter estimation; Polarization; Radar scattering; Remote sensing; Synthetic aperture radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.752238

Filename

752238