New TLM formulations for Debye medium

Attalhaoui, Abdellah; Bezzout, Hamid; Habibi, Mohamed; Faylali, Hanan El

doi:10.1016/j.ijleo.2020.164436

Cited by 4 publications

(5 citation statements)

References 10 publications

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“…As a result, the (3) to ( 8) can be transformed into 1D where, (∆x = ∆y = 0). The E x /H y mode is represented by (10) and (11), the E y /H x mode is also represented by the ( 9) and (12). Both modes propagate independently in the dielectric medium and have the same behaviour regarding the medium of propagation.…”

Section: Research Methods 21 Governing Equationsmentioning

confidence: 99%

“…FDTD is used to model GPR in interaction with anisotropic and dispersive media [8]. On the other hand, several researchers use the TLM method to describe and analyze the behavior of electromagnetic waves, in Lorentz medium [9] by adapting the auxiliary differential equation for TLM method, and the use of the Debye medium through the use of exponential time difference scheme [10]. A high-order discontinuous Galerkin time domain method is used in two dimensional problem to solve Maxwell's equations using a perfectly matched layer (PML) absorbing boundary conditions to absorb the wave in boundaries [11].…”

Section: Introductionmentioning

confidence: 99%

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Agent-based model simulation for ground penetration radar based on Netlogo platform

Bezzout

Faylali

2022

IJEECS

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Ground penetrating radar is used to detect magnetic materials underground by transmitting an electromagnetic wave into the material and receive the reflected pulse. In this paper, we develop a new agent-based model to simulate and evaluate the behavior of the ground penetrating radar based on Maxwell’s equations. This model contains several agents that represent the electric field, the magnetic field, the transmitted wave, the simulated medium, and the object to be detected. The implementation of this model is performed in Netlogo plaform because of its simplicity of coding and robustness of simulation. In order to validate our model, we have simulated the effect of the medium characterized by a dielectric constant and a conductance on the transmitted wave to evaluate the behavior of ground penetrating radar. The results obtained are compared with the literrature. Findings demonstrate that the transmitted pulse in the form of Gaussian pulse is reflected when it interacts with the object to detect. Thus, the ground penetrating radar can be efficiently simulated on Netlogo platform.

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Section: Research Methods 21 Governing Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Agent-based model simulation for ground penetration radar based on Netlogo platform

Bezzout

Faylali

2022

IJEECS

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“…The complex relative permittivity is approximated by the Debye dispersive model with 4‐poles in the frequency domain, 26 which is given by

ε_{normalr} (ω) = ε_{\infty} + {false\sum}_{k = 1}^{4} \frac{ε_{normals} - ε_{\infty}}{1 + j {italicωτ}_{normalk}} = ε_{\infty} + {false\sum}_{k = 1}^{4} \frac{Δ ε_{normalk}}{1 + j {italicωτ}_{normalk}}

where ε ∞ is the infinite‐frequency relative permittivity of the medium, ε s is the static relative permittivity, ∆ε k is the k th change in relative permittivity, and τ k is the k th Debye relaxation time.…”

Section: Fundamental Description Of the Methodsmentioning

confidence: 99%

“…The complex relative permittivity is approximated by the Debye dispersive model with 4-poles in the frequency domain, 26 which is given by…”

Section: Ade Fdtd Equations For Dispersive Mediamentioning

confidence: 99%

Modeling of indoor network channels with dispersive media based on a modified CFDTD method

Shi

Wang

Zhang

et al. 2022

Int J Numerical Modelling

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In order to investigate the electromagnetic (EM) propagation characteristics and further get the channel models for indoor environments, a modified conformal finite-difference time-domain (CFDTD) method is introduced in this paper. Specifically, the dispersion characteristics of media are modeled by using the auxiliary differential equation (ADE) technique of the Debye model, and the EM field iterative equation is obtained by weighted-length of various media in the conformal cells for the curved structure. The proposed method is used to simulate the channels of 2.4 GHz wireless fidelity (Wi-Fi) network and 5G microcellular network, respectively, for the single-and complex multiroom scenarios. The impulse response, power delay profile and path loss exponent are extracted from the simulation data to analyze the effective ultrawideband (UWB) channel characteristics. Compared with the traditional FDTD, the proposed method has the advantage of obtaining a stable and good accuracy solution and reducing the time step without the need to solve highorder differential equations.

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“…Measurements of polarization of laser beams and femtosecond-laser pulse width are applicable for different tasks of optical coding and data processing, and possibly these papers will encourage somebody for new experiments in optics and laser systems supported by specialized data processing toolkit. Also one more intense data processing paper "A New ADE-TLM for Lorentz Dispersive Medium" by Abdellah Attalhaoui, Hamid Bezzout, Mohamed Habibi, and Hanan El Faylali [8] in the special section refers to the further evolution in numerical solution of Maxwell's equations in dispersive medium, namely, for auxiliary differential equation method in transmission line modeling. One can hope that this will help to obtain more productive calculations of waveguide components for multiplexing and switching devices for fiber networks.…”

Section: Introduction To the Special Section "Lasers Communicationsmentioning

confidence: 99%

Introduction to the Special Section “Lasers, Communications, and Intense Data Processing”

Bykovsky

2021

J Russ Laser Res

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New TLM formulations for Debye medium

Cited by 4 publications

References 10 publications

Agent-based model simulation for ground penetration radar based on Netlogo platform

Agent-based model simulation for ground penetration radar based on Netlogo platform

Modeling of indoor network channels with dispersive media based on a modified CFDTD method

Introduction to the Special Section “Lasers, Communications, and Intense Data Processing”

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