Title :
Simulation of unpolarized scattering in synthetic aperture radar images
Author_Institution :
Lockheed Martin Corp., PA, USA
fDate :
3/1/1999 12:00:00 AM
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;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
