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Multilook Intensity Ratio Distribution for 3-D 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 : Sunday, August 9, 2020 - 2:01:46 PM

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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 3-D Layered Structures with Slightly Rough Interfaces. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2020, 68 (7), pp.5575-5582. ⟨10.1109/TAP.2020.2979275⟩. ⟨insu-02533353⟩

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