Imaging of rough surfaces by RTM method

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Tarih

2024

Dergi Başlığı

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Yayıncı

IEEE

Erişim Hakkı

info:eu-repo/semantics/closedAccess

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Özet

An electromagnetic imaging framework is implemented utilizing a single frequency reverse time migration (RTM) technique to accurately reconstruct inaccessible two-dimensional (2D) rough surface profiles from the knowledge of scattered field data. The unknown surface profile, which is expressed as a 1D height function, is either perfectly electric conducting (PEC) or an interface between two penetrable media. For both cases, it is assumed that the surface is illuminated by a number of line sources located in the upper medium. The scattered fields, which should be collected by real measurements in practical applications, are obtained synthetically by solving the associated direct scattering problem through the surface integral equations. RTM is subsequently applied to generate a cross-correlation imaging functional which is evaluated numerically and provides a 2D image of the region of interest. A high correlation is observed by the functional in the regions where the transitions between two media occur. Hence, it results in the acquisition of the unknown surface profile at the sites where the functional attains its highest values. The efficiency of the proposed method is comprehensively tested by numerical examples covering various types of scattering scenarios.

Açıklama

Anahtar Kelimeler

Imaging, Inverse electromagnetic scattering problems, Media, Reverse time migration, Rough surface reconstruction, Rough surfaces, Surface reconstruction, Surface roughness, Surface waves, Three-dimensional displays, Approximation algorithms, Electric conductance, Image segmentation, Integral equations, Inverse problems, Numerical methods, Surface measurement, Surface scattering, Electromagnetic scattering problem, Inverse electromagnetic scatterings, Medium, Reverse-time migration, Scattering, Reconstruction, Algorithm, Gathers

Kaynak

IEEE Transactions on Geoscience and Remote Sensing

WoS Q Değeri

Q1
Q1

Scopus Q Değeri

Q1

Cilt

62

Sayı

Künye

Sefer, A., Yapar, A. & Yelkenci, T. (2024). Imaging of rough surfaces by RTM method. IEEE Transactions on Geoscience and Remote Sensing, 62, 1-13. doi:10.1109/TGRS.2024.3374972