Scattering by Conducting Bodies in Random Media

Tateiba, Mitsuo; Meng, Zhi Qi; El-Ocla, Hosam

doi:10.1541/ieejfms.124.1094

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…We apply a two-scale asymptotic procedure [3,6] to get the fourth moment of Green's functions. As a result, we have obtained numerically results agreed with the law of energy conservation, and shown some interesting behaviors of bistatic RCS caused by statistical coupling between incident and scattered waves [7,8,9].…”

Section: Introductionsupporting

confidence: 73%

Bistatic Scattering Enhancement Phenomenon in a Random Medium

Meng¹,

Tateiba²

2005

PIERS Online

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Backscattering enhancement phenomenon in a random medium is studied by numerically analyzing a bistatic radar cross-section of a circular cylinder, under the condition that the spatial coherence length of the incident waves around the cylinder is larger enough than the size of the cylinder. The numerical analysis shows that the phenomenon may occur not only in the backward direction but also in other directions.

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Section: Introductionsupporting

confidence: 73%

Bistatic Scattering Enhancement Phenomenon in a Random Medium

Meng¹,

Tateiba²

2005

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“…(T. Yamasaki) B6. Wave in random, inhomogeneous, nonlinear and complex media 6.1 Wave propagation and scattering in random media Tateiba et al [2004] shows that scattering by a body in a random medium consists of the following two issues; one is scattering of spatially partially coherent wave by the body and the other is coupling between incident and scattered waves through the random medium. Investigating separately each issue makes the scattering more understandable.…”

Section: Guided Waves and Propagationmentioning

confidence: 99%

Commission B fields and waves

2012

2012 29th National Radio Science Conference (NRSC)

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Edited by Toru Sato This report presents a summary of Japanese contributions, including those of international collaborations, in the field related to URSI Commission B during the last three years. It is not intended to be an exhaustive survey of all relevant works, but rather an omnibus of important works around the authors of each section or subsection. If important contributions in some field are missing, it is due to the limited knowledge and effort of the editor.

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“…Unfortunately, in the current literature there are few analytical models for the determination of RCS of composite targets (Barrick, ; El‐Ocla & Tateiba, ; Tateiba et al, ), even under the geometrical optics (GO) and the physical optics (PO) approximations. Several attempts have been made to find general and compact expressions for the bistatic scattering matrix starting from the more general framework of KA, but analytical formulas for the scattering coefficients are obtained only under the KA‐GO approximation (Elfouhaily & Guérin, ; Jin & Lax, ; Stogryn, ).…”

Section: Introductionmentioning

confidence: 99%

A Convenient Analytical Framework for Electromagnetic Scattering From Composite Targets

et al. 2019

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This paper furnishes a convenient theoretical framework for the analytical evaluation of the bistatic scattering coefficients, under the Kirchhoff approximation (KA) in electromagnetics. Starting from the KA, specific results under the geometrical optics and physical optics approximations are furnished, along with the backscattering geometry. The main aim is to provide closed-form expressions of the scattering matrix that are suited to scenarios where multiple-bounce scattering comes into play and/or surfaces with arbitrary unit normal are present. This is accomplished by addressing the following objectives: (1) to provide an explicit formulation of the scattering matrix under KA in terms of the incident and scattered unit wave vectors, (2) to provide a more generic derivation of the scattering matrix under the physical optics approximation by relaxing typical hypotheses regarding the geometry of the scattering problem, and (3) to highlight some important symmetries of the scattering matrix under KA. It is shown that the scattering matrix under KA can conveniently be expressed in terms of few variables, thus greatly reducing the complexity of the theoretical derivation of the scattering matrix. Some benefits of the proposed formalism are illustrated in two application examples, where the problem is the analysis of the electromagnetic scattering from canonical composite targets. The canonical study cases demonstrate the evaluation of the scattering matrix in complex scenarios, such as maritime and urban environments, where multiple-bounce contributions and/or contributions from tilted surfaces come into play. Finally, comparisons with literature results allow for validating the proposed derivation and assessing its validity limits in practical applications.

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Scattering by Conducting Bodies in Random Media

Cited by 5 publications

References 24 publications

Bistatic Scattering Enhancement Phenomenon in a Random Medium

Bistatic Scattering Enhancement Phenomenon in a Random Medium

Commission B fields and waves

A Convenient Analytical Framework for Electromagnetic Scattering From Composite Targets

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