The FIT-MoM Hybrid Method for Analysis of Electromagnetic Scattering by Dielectric Bodies of Revolution

Kucharski, Andrzej A.

doi:10.1109/tap.2018.2796721

Cited by 19 publications

(5 citation statements)

References 23 publications

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“…Approximate method includes: Kirchhoff Approximation Method [7,8], Phase Perturbation Method, Small Perturbation Method, Small Slop Approximation, and Physical Optical Method [9][10][11] , etc. Approximation method is simple to model, fast to calculate and less computation consume, but their calculation results are often not accurate enough, now people are paying more and more attention on the numerical method such as the MOM method, fast multilevel method, finite element method, FDTD and forward-backward method [12][13][14][15] ,etc. The numerical method is less efficient than approximate method in terms of calculation, but its calculation accuracy is higher，and the obtained result is more universal.…”

Section: Introductionmentioning

confidence: 99%

Composite Scattering Computation from Multiple Dielectric Targets of One-Dimensional Fractal Sea Surface Using MOM

Wang,

Wang

2023

Preprint

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Bistatic scattering coefficient have important application of ocean active microwave remote sensing. In this paper, a general expression of the composite scattering coefficient for multiple dielectric targets of one-dimensional fractal sea surface is derived by MOM method. Secondly, the bistatic scattering coefficient is computed, there are two class missile targets and one class ship target of one-dimensional fractal sea surface, and the influence of the water dielectric constant, fractal dimension, wind speed, the target dielectric constant and spatial position is discussed, and the corresponding conclusions are given. The proposed algorithm is able to solve some composite scattering problems, such as “dielectric or conductive object + rough surface”, “dielectric or conductive floating object +rough ”and it has certain generalization and reference.

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Section: Introductionmentioning

confidence: 99%

Composite Scattering Computation from Multiple Dielectric Targets of One-Dimensional Fractal Sea Surface Using MOM

Wang,

Wang

2023

Preprint

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“…Mathematical methods allow, without significant expenditures of materials and time, the simulation of EM wave scattering from UAVs of various shapes and materials and for various radar-probing scenarios. Here, the most widely used are asymptotic high-frequency methods (AHFMs) [13][14][15][16][17][18] (in the case of electrically large scatterers) and methods based on solving boundary integral equations (IEs) [3,8,14,16,[19][20][21][22][23][24][25][26][27] (in the case of electrically small and resonant-size scatterers).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, for mathematical modelling of their radar scattering, it is reasonable to use methods based on the boundary IE. Note that IEs of EM scattering are usually solved using method of moments (MoM) [3,8,14,16,[19][20][21][22][23][24][25][26][27][28][29][30][31][32], which belongs to the class of projection methods.…”

Section: Introductionmentioning

confidence: 99%

Integral equation modelling of unmanned aerial vehicle radar scattering characteristics in VHF to S frequency bands

Zalevsky

Sukharevsky

Vasylets

2021

IET Microwaves Antenna & Prop

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Methods for modelling the radar scattering characteristics of resonance-size airborne objects containing metallic and dielectric design elements are discussed. The developed algorithms are based on solving Fredholm second-kind boundary integral equations (IEs) that place them within the context of the method of analytical regularisation. The magnetic field IE is used for metal elements, and the Müller IE set is used for dielectric elements. The proposed algorithms provide important novelties in calculating the radar scattering characteristics of objects with various curvature radii, including electrically thin scatterers. The description is accompanied by an analysis of developed algorithm convergence. For the validation, a comparison of results for model object obtained by different methods is presented. The results of modelling the radar scattering characteristics of an unmanned aerial vehicle and its separate metallic and dielectric elements within the VHF and S frequency bands are demonstrated and discussed.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…Among these methods, there are two classical methods proposed in Yuan et al 12 and Ye et al, 13 respectively. In Yuan et al, 12 the MOM method 14 combined with circuit‐based method is used for the EMI analysis of penetrated wire terminated with PCB circuit in shielded cavity. Unfortunately, this method is just a frequency domain algorithm, and the structure of penetrated wire should be meshed directly when using MOM method to extract the equivalent circuit model of penetrated wire as excitation source of inner PCB circuit.…”

Section: Introductionmentioning

confidence: 99%

Coupling analysis of penetrated wire connecting two electronic devices using a time domain hybrid method

Zhang

2021

Micro & Optical Tech Letters

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An efficient time domain hybrid method is proposed, which integrate transmission line (TL) equations, finite‐difference time‐domain (FDTD) method, Norton and Substitution theorems together, to predict the EM fields coupling with the penetrated wire connecting two electronic devices. Within this method, the geometry of penetrated wire is divided into external and internal TLs according to the shielded enclosures of two devices firstly. Then the equivalent circuit model of penetrated wire is established by the Norton and Substitution theorems, which can represent the discontinuity of impedance between external and internal TLs and the transmitting of interference signals between terminal loads of the wire. Finally, the TL equations combined with FDTD method is utilized to compute the transient responses on external and internal TLs respectively. Numerical simulations of penetrated wire connecting two shielded enclosures in different environment are employed to verify the accuracy and efficiency of the presented method.

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The FIT-MoM Hybrid Method for Analysis of Electromagnetic Scattering by Dielectric Bodies of Revolution

Cited by 19 publications

References 23 publications

Composite Scattering Computation from Multiple Dielectric Targets of One-Dimensional Fractal Sea Surface Using MOM

Composite Scattering Computation from Multiple Dielectric Targets of One-Dimensional Fractal Sea Surface Using MOM

Integral equation modelling of unmanned aerial vehicle radar scattering characteristics in VHF to S frequency bands

Coupling analysis of penetrated wire connecting two electronic devices using a time domain hybrid method

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