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Multilook Intensity Ratio Distribution for 3D Layered Structures with Slightly Rough Interfaces

Richard Dusséaux 1 Saddek Afifi 2
1 SPACE - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
2 Badji Mokhtar-Annaba University
Abstract : We derive the statistics for the multilook intensity ratio for a multilayered medium bounded by randomly rough surfaces. Calculations are carried out in the context of the first-order small perturbation method and assume slightly rough surfaces of infinite extent and centered Gaussian height distributions. We show that the probability distributions for the co-polar and cross-polarized intensity ratios for n-look data are functions of three parameters and that the mean exists for n > 1 and the variance for n > 2 The obtained theoretical expressions are verified by comparison with Monte-Carlo results.
Keywords : Scattering Probability density function Random variables Rough surfaces Surface roughness Perturbation methods Optical surface waves Multilook intensity ratio layered rough surfaces scattering amplitudes small perturbation method
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https://hal-insu.archives-ouvertes.fr/insu-02533353
Contributor : Catherine Cardon <>
Submitted on : Monday, April 6, 2020 - 1:35:19 PM
Last modification on : Tuesday, April 7, 2020 - 1:54:57 AM

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INSU | LATMOS | UVSQ | SU-SCIENCES | SORBONNE-UNIVERSITE | UNIV-PARIS-SACLAY | CNRS

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Richard Dusséaux, Saddek Afifi. Multilook Intensity Ratio Distribution for 3D Layered Structures with Slightly Rough Interfaces. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2020, (in press). ⟨10.1109/TAP.2020.2979275⟩. ⟨insu-02533353⟩

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