Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger

This paper discusses the development of Discontinuous Galerkin method, which has both linear shape function and weight function, for modeling Ground Penetrating Radar (GPR) in heterogeneous media. The triangular meshes are used due to their flexibility to deal with complex geometries. The Berenger P...

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Main Author: Pranowo
Format: Article
Language:English
Published: Universitas Gadjah Mada 2016-05-01
Series:Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Subjects:
Online Access:http://ejnteti.jteti.ugm.ac.id/index.php/JNTETI/article/view/234
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author Pranowo
author_facet Pranowo
author_sort Pranowo
collection DOAJ
description This paper discusses the development of Discontinuous Galerkin method, which has both linear shape function and weight function, for modeling Ground Penetrating Radar (GPR) in heterogeneous media. The triangular meshes are used due to their flexibility to deal with complex geometries. The Berenger Perfectly Matched Layer (PML) is used as absorbing boundary condition at the truncation boundaries. The numerical results of the DG method are compared with the exact solutions and the numerical results of FDTD method and the comparisons show that DG method has better accuracy than FDTD method and more stable for long time simulation. The simulation results of GPR show that the PML works well. Propagating waves at the edge of absorbing boundaries can be suppressed without any significant reflection. The results also show that various waves e.g., transmission waves, reflection waves, and diffraction waves produced by heterogeneous material can be simulated well.
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spelling doaj.art-9b97c7c007824b35bd896dbae9c2a7da2022-12-21T23:53:16ZengUniversitas Gadjah MadaJurnal Nasional Teknik Elektro dan Teknologi Informasi2301-41562460-57192016-05-015211512110.22146/jnteti.v5i2.234Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML BerengerPranowo0 Universitas Atma Jaya YogyakartaThis paper discusses the development of Discontinuous Galerkin method, which has both linear shape function and weight function, for modeling Ground Penetrating Radar (GPR) in heterogeneous media. The triangular meshes are used due to their flexibility to deal with complex geometries. The Berenger Perfectly Matched Layer (PML) is used as absorbing boundary condition at the truncation boundaries. The numerical results of the DG method are compared with the exact solutions and the numerical results of FDTD method and the comparisons show that DG method has better accuracy than FDTD method and more stable for long time simulation. The simulation results of GPR show that the PML works well. Propagating waves at the edge of absorbing boundaries can be suppressed without any significant reflection. The results also show that various waves e.g., transmission waves, reflection waves, and diffraction waves produced by heterogeneous material can be simulated well.http://ejnteti.jteti.ugm.ac.id/index.php/JNTETI/article/view/234pemodelansimulasigelombanggprdiscontinuous galerkinpml
spellingShingle Pranowo
Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
Jurnal Nasional Teknik Elektro dan Teknologi Informasi
pemodelan
simulasi
gelombang
gpr
discontinuous galerkin
pml
title Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
title_full Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
title_fullStr Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
title_full_unstemmed Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
title_short Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
title_sort pemodelan awal ground penetrating radar dengan metode discontinuous galerkin dan pml berenger
topic pemodelan
simulasi
gelombang
gpr
discontinuous galerkin
pml
url http://ejnteti.jteti.ugm.ac.id/index.php/JNTETI/article/view/234
work_keys_str_mv AT pranowo pemodelanawalgroundpenetratingradardenganmetodediscontinuousgalerkindanpmlberenger