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Hatamian, Amir, Ghobadi, Changiz, Nourinia, Javad, Mostafapour, Ehsan, Barzegari, Rahim. (1399). Extraction of Electromagnetic Scattering from Random Rough Surfaces in Complex Environments using Numerical Methods. , 10(1), 39-50. doi: 10.22070/jce.2022.14642.1188
Amir Hatamian; Changiz Ghobadi; Javad Nourinia; Ehsan Mostafapour; Rahim Barzegari. "Extraction of Electromagnetic Scattering from Random Rough Surfaces in Complex Environments using Numerical Methods". , 10, 1, 1399, 39-50. doi: 10.22070/jce.2022.14642.1188
Hatamian, Amir, Ghobadi, Changiz, Nourinia, Javad, Mostafapour, Ehsan, Barzegari, Rahim. (1399). 'Extraction of Electromagnetic Scattering from Random Rough Surfaces in Complex Environments using Numerical Methods', , 10(1), pp. 39-50. doi: 10.22070/jce.2022.14642.1188
Hatamian, Amir, Ghobadi, Changiz, Nourinia, Javad, Mostafapour, Ehsan, Barzegari, Rahim. Extraction of Electromagnetic Scattering from Random Rough Surfaces in Complex Environments using Numerical Methods. , 1399; 10(1): 39-50. doi: 10.22070/jce.2022.14642.1188

Extraction of Electromagnetic Scattering from Random Rough Surfaces in Complex Environments using Numerical Methods

Journal of Communication Engineering
مقاله 3، دوره 10، شماره 1 - شماره پیاپی 20، فروردین 2021، صفحه 39-50    اصل مقاله (1.13 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22070/jce.2022.14642.1188
نویسندگان
Amir Hatamian1؛ Changiz Ghobadi2؛ Javad Nourinia2؛ Ehsan Mostafapour* 3؛ Rahim Barzegari1
1Department of Electrical Engineering, Urmia University, Urmia, Iran
2Department of Electrical and Computer Engineering Urmia University, Urmia, Iran
3Urmia University
چکیده
In this study, we present a comprehensive overview of the exact and approximate models and methods that are available to measure the dispersion of random rough surfaces. We investigated the structural implementation of such surfaces in the finite-difference time-domain (FDTD) simulation environment and introduced a method for error reduction in simulated environments with such surfaces to improve the accuracy of near-path scattering of random rough surfaces. For this aim, a new adsorbent consisting of two types of adsorbents with distinct properties is proposed. During different tests in environments with the random rough surfaces and more complex environments with abnormal dispersers, the superiority, and higher performance of the proposed adsorbents are verified and then, properties of the adsorbents are investigated. Next, two dimensional random rough surfaces are analyzed to investigate electromagnetic scattering. To determine the electromagnetic scattering field, surface height's and slope's joint probability density function is calculated and utilized after generating a two-dimensional rough surface. The ray-tracing base model is exploited, and then the Monte-Carlo technique is hired to convert an infinite integration form into the form of finite integration.
کلیدواژه‌ها
Absorbent layers؛ Random rough surface scattering؛ Finite-difference time-domain (FDTD) numerical method؛ Numerical methods in electromagnetism
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