Abstract
This paper addresses the subject of electromagnetic wave scattering in layered media, thus covering the recent progress achieved with different approaches. Existing theories and models are analyzed, classified, and summarized on the basis of their characteristics. Emphasis is placed on both theoretical and practical application. Finally, patterns and trends in the current literature are identified and critically discussed.
Highlights
The problem of electromagnetic (EM) wave scattering in layered or stratified media has become an extremely important subject with theoretical and practical relevance.most of the real structures of interest, both those occurring naturally and those fabricated artificially, can be reasonably assimilated to layered structures to some degree
Methods of studying scattering phenomena in layered media are greatly diversified. They depend on the kind and description of structure, on the information at our disposal concerning the structure of the medium, and on the kind of information that is sought about the wave process in question
Assuming a p-polarized incident wave impinging on the structure from the upper half space, the normalized radar scattering cross section (NRCS) of the layered medium with N corrugated interfaces can be expressed in compact closed-form as follows: σ0pp
Summary
The problem of electromagnetic (EM) wave scattering in layered or stratified media has become an extremely important subject with theoretical and practical relevance.most of the real structures of interest, both those occurring naturally and those fabricated artificially, can be reasonably assimilated to layered structures to some degree. Methods of studying scattering phenomena in layered media are greatly diversified. They depend on the kind and description of structure (objects embedded in layers, inhomogeneities distributed in a continuous manner or in the form of randomly distributed discrete scattering elements, etc.), on the information at our disposal concerning the structure of the medium, and on the kind of information that is sought about the wave process in question. Depending on the application context, the investigation on wave phenomena in layered structure, in some cases, can be successfully conducted by resorting to deterministic description; as far as natural scenarios are concerned, a stochastic description can provide a more adequate description of reality
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