Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique
In this paper, a Frequency-Dependent Forward-Backward Time-Stepping (FD-FBTS) inverse scattering technique is used for reconstruction of homogeneous dispersive object. The aim of the technique is to reconstruct the relative permittivity at infinite frequency, static relative permittivity and static...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Electromagnetics Academy
2016
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/13959/ http://ir.unimas.my/id/eprint/13959/7/Preliminary%20Results%20on%20Estimation%20of%20the%20Dispersive%20Dielectric%20%28abstract%29.pdf |
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| author | Ng, Shi W. Kismet, Anak Hong Ping Shafrida, Sahrani Mohammad Hamiruce, Marhaban Mohd I., Sariphan Toshifumi, Moriyama Takashi, Takenaka |
| author_facet | Ng, Shi W. Kismet, Anak Hong Ping Shafrida, Sahrani Mohammad Hamiruce, Marhaban Mohd I., Sariphan Toshifumi, Moriyama Takashi, Takenaka |
| author_sort | Ng, Shi W. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | In this paper, a Frequency-Dependent Forward-Backward Time-Stepping (FD-FBTS) inverse scattering technique is used for reconstruction of homogeneous dispersive object. The aim of the technique is to reconstruct the relative permittivity at infinite frequency, static relative permittivity and static conductivity of the homogeneous dispersive object simultaneously. The technique utilizes iterative finite-difference time-domain (FDTD) method for solving inverse scattering problem in time domain. The minimization of the cost functional is carried out utilizing Dai-Yuan nonlinear conjugate-gradient algorithm. The Fréchet derivatives of the augmented cost functional are derived analytically with respect to scatterer properties. Numerical results for reconstruction of two-dimensional homogeneous dispersive illustrate the performance of the proposed technique. |
| first_indexed | 2025-11-15T06:41:11Z |
| format | Article |
| id | unimas-13959 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:41:11Z |
| publishDate | 2016 |
| publisher | Electromagnetics Academy |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-139592016-10-17T06:05:12Z http://ir.unimas.my/id/eprint/13959/ Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique Ng, Shi W. Kismet, Anak Hong Ping Shafrida, Sahrani Mohammad Hamiruce, Marhaban Mohd I., Sariphan Toshifumi, Moriyama Takashi, Takenaka TK Electrical engineering. Electronics Nuclear engineering In this paper, a Frequency-Dependent Forward-Backward Time-Stepping (FD-FBTS) inverse scattering technique is used for reconstruction of homogeneous dispersive object. The aim of the technique is to reconstruct the relative permittivity at infinite frequency, static relative permittivity and static conductivity of the homogeneous dispersive object simultaneously. The technique utilizes iterative finite-difference time-domain (FDTD) method for solving inverse scattering problem in time domain. The minimization of the cost functional is carried out utilizing Dai-Yuan nonlinear conjugate-gradient algorithm. The Fréchet derivatives of the augmented cost functional are derived analytically with respect to scatterer properties. Numerical results for reconstruction of two-dimensional homogeneous dispersive illustrate the performance of the proposed technique. Electromagnetics Academy 2016 Article PeerReviewed text en http://ir.unimas.my/id/eprint/13959/7/Preliminary%20Results%20on%20Estimation%20of%20the%20Dispersive%20Dielectric%20%28abstract%29.pdf Ng, Shi W. and Kismet, Anak Hong Ping and Shafrida, Sahrani and Mohammad Hamiruce, Marhaban and Mohd I., Sariphan and Toshifumi, Moriyama and Takashi, Takenaka (2016) Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique. Progress In Electromagnetics Research M, 49. pp. 61-68. ISSN 1937-8726 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983505472&partnerID=40&md5=02d8d07f3ded105496a7cd2c96a7a072 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Ng, Shi W. Kismet, Anak Hong Ping Shafrida, Sahrani Mohammad Hamiruce, Marhaban Mohd I., Sariphan Toshifumi, Moriyama Takashi, Takenaka Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title | Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title_full | Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title_fullStr | Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title_full_unstemmed | Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title_short | Preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| title_sort | preliminary results on estimation of the dispersive dielectric properties of an object utilizing frequency-dependent forward-backward time-stepping technique |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://ir.unimas.my/id/eprint/13959/ http://ir.unimas.my/id/eprint/13959/ http://ir.unimas.my/id/eprint/13959/7/Preliminary%20Results%20on%20Estimation%20of%20the%20Dispersive%20Dielectric%20%28abstract%29.pdf |