Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Sensors 2008, 8(11), 7380-7409; doi:10.3390/s8117380
Article

From Maxwell’s Equations to Polarimetric SAR Images: A Simulation Approach

1,2,* , 2
 and 2
Received: 2 June 2008; in revised form: 26 September 2008 / Accepted: 15 November 2008 / Published: 19 November 2008
(This article belongs to the Special Issue Synthetic Aperture Radar (SAR))
View Full-Text   |   Download PDF [1960 KB, uploaded 21 June 2014]
Abstract: A new electromagnetic approach for the simulation of polarimetric SAR images is proposed. It starts from Maxwell’s equations, employs the spectral domain full-wave technique, the moment method, and the stationary phase method to compute the far electromagnetic fields scattered by multilayer structures. A multilayer structure is located at each selected position of a regular rectangular grid of coordinates, which defines the scene area under imaging. The grid is determined taking into account the elementary scatter size and SAR operational parameters, such as spatial resolution, pixel spacing, look angle and platform altitude. A two-dimensional separable “sinc” function to represent the SAR spread point function is also considered. Multifrequency sets of single-look polarimetric SAR images are generated, in L-, C- and X-bands and the images are evaluated using several measurements commonly employed in SAR data analysis. The evaluation shows that the proposed simulation process is working properly, since the obtained results are in accordance with those presented in the literature. Therefore, this new approach becomes suitable for carrying out theoretical and practical studies using polarimetric SAR images.
Keywords: Synthetic Aperture Radar; Polarimetric SAR image simulation; electromagnetic scattering model; planar multilayer structure; SAR data analysis Synthetic Aperture Radar; Polarimetric SAR image simulation; electromagnetic scattering model; planar multilayer structure; SAR data analysis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Sant’Anna, S.J.S.; Da S. Lacava, J.C.; Fernandes, D. From Maxwell’s Equations to Polarimetric SAR Images: A Simulation Approach. Sensors 2008, 8, 7380-7409.

AMA Style

Sant’Anna SJS, Da S. Lacava JC, Fernandes D. From Maxwell’s Equations to Polarimetric SAR Images: A Simulation Approach. Sensors. 2008; 8(11):7380-7409.

Chicago/Turabian Style

Sant’Anna, Sidnei J.S.; Da S. Lacava, J. C.; Fernandes, David. 2008. "From Maxwell’s Equations to Polarimetric SAR Images: A Simulation Approach." Sensors 8, no. 11: 7380-7409.



Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert