A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA
The existing methods for calculating electromagnetic scattering can be used to obtain the RCS of power lines. However, these methods do not take advantage of the periodicity of power lines. We propose a fast electromagnetic scattering calculation method combining the integral equation discontinuous...
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MDPI AG
2023-02-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/3/757 |
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| author | Chunfeng Chen Changyu Hu Jianjiang Zhou |
| author_facet | Chunfeng Chen Changyu Hu Jianjiang Zhou |
| author_sort | Chunfeng Chen |
| collection | DOAJ |
| description | The existing methods for calculating electromagnetic scattering can be used to obtain the RCS of power lines. However, these methods do not take advantage of the periodicity of power lines. We propose a fast electromagnetic scattering calculation method combining the integral equation discontinuous Galerkin (IEDG) method and the characteristic modes-Sherman–Morrison–Woodbury algorithm (CM-SMWA) exploiting the power lines with stranded structure. We adopt the IEDG to discretize the electric field integral equation (EFIE) so that the EFIE can deal with non-conformal grids and significantly increase the flexibility of the CM-SMWA. Combing with the periodic property of power lines, the modeling and grid generation shall be carried out within one cycle (stranding) of the power line, and the grids of the rest cycle of the power line can be spliced by translating the grid of the divided sections. The advantage of the proposed method lies in that only the CM of one segment needs to be calculated, and the result can be applied to other segments to avoid repeated calculation of the CMs. The simulation results of the RCS of power lines show that the calculation time of our method is cut down by 50% as compared to the conventional CM-SMWA. |
| first_indexed | 2024-03-11T09:46:54Z |
| format | Article |
| id | doaj.art-624ad2a557234c6581844bae91ae5e6d |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T09:46:54Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-624ad2a557234c6581844bae91ae5e6d2023-11-16T16:31:04ZengMDPI AGElectronics2079-92922023-02-0112375710.3390/electronics12030757A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWAChunfeng Chen0Changyu Hu1Jianjiang Zhou2Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaSchool of Electronic Information Engineering, Wuxi University, Wuxi 214063, ChinaKey Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe existing methods for calculating electromagnetic scattering can be used to obtain the RCS of power lines. However, these methods do not take advantage of the periodicity of power lines. We propose a fast electromagnetic scattering calculation method combining the integral equation discontinuous Galerkin (IEDG) method and the characteristic modes-Sherman–Morrison–Woodbury algorithm (CM-SMWA) exploiting the power lines with stranded structure. We adopt the IEDG to discretize the electric field integral equation (EFIE) so that the EFIE can deal with non-conformal grids and significantly increase the flexibility of the CM-SMWA. Combing with the periodic property of power lines, the modeling and grid generation shall be carried out within one cycle (stranding) of the power line, and the grids of the rest cycle of the power line can be spliced by translating the grid of the divided sections. The advantage of the proposed method lies in that only the CM of one segment needs to be calculated, and the result can be applied to other segments to avoid repeated calculation of the CMs. The simulation results of the RCS of power lines show that the calculation time of our method is cut down by 50% as compared to the conventional CM-SMWA.https://www.mdpi.com/2079-9292/12/3/757power linesradar cross-sectioncharacteristic modeintegral equation discontinuous GalerkinSherman–Morrison–Woodbury algorithm |
| spellingShingle | Chunfeng Chen Changyu Hu Jianjiang Zhou A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA Electronics power lines radar cross-section characteristic mode integral equation discontinuous Galerkin Sherman–Morrison–Woodbury algorithm |
| title | A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA |
| title_full | A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA |
| title_fullStr | A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA |
| title_full_unstemmed | A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA |
| title_short | A Fast Power Lines RCS Calculation Method Combining IEDG with CM-SMWA |
| title_sort | fast power lines rcs calculation method combining iedg with cm smwa |
| topic | power lines radar cross-section characteristic mode integral equation discontinuous Galerkin Sherman–Morrison–Woodbury algorithm |
| url | https://www.mdpi.com/2079-9292/12/3/757 |
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