Title :
Polarimetric Calibration Using a Genetic Algorithm
Author_Institution :
Dept. of Phys., Sichuan Normal Univ., Chengdu
fDate :
7/1/2007 12:00:00 AM
Abstract :
This letter presents a novel calibration approach to polarimetric synthetic aperture radar using distributed targets with known scattering characteristics. A genetic algorithm with complex-valued encoding is proposed to solve the overdetermined system of nonlinear equations associated with the polarimetric calibration problem. The proposed genetic algorithm is described in detail, and validation of the algorithm is performed by numerical simulations.
Keywords :
genetic algorithms; geophysical techniques; numerical analysis; radar imaging; radar polarimetry; synthetic aperture radar; complex-valued encoding; distributed calibration targets; genetic algorithm; nonlinear equations; numerical simulation; polarimetric calibration approach; polarimetric calibration problem; polarimetric synthetic aperture radar; scattering characteristics; Calibration; Distortion measurement; Genetic algorithms; Nonlinear distortion; Nonlinear equations; Polarimetric synthetic aperture radar; Pollution measurement; Radar polarimetry; Radar scattering; Synthetic aperture radar; Distributed target; genetic algorithm; polarimetric calibration; polarimetric synthetic aperture radar; scattering measurement;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2007.895725
