Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site
In the process of lunar exploration, and specifically when studying lunar surface structure and thickness, the established lunar regolith model is usually a uniform and ideal structural model, which is not well-suited to describe the real structure of the lunar regolith layer. The present study aims...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/3013249 |
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| author | Chunyu Ding Yan Su Shuguo Xing Shun Dai Yuan Xiao Jianqing Feng Danqing Liu Chunlai Li |
| author_facet | Chunyu Ding Yan Su Shuguo Xing Shun Dai Yuan Xiao Jianqing Feng Danqing Liu Chunlai Li |
| author_sort | Chunyu Ding |
| collection | DOAJ |
| description | In the process of lunar exploration, and specifically when studying lunar surface structure and thickness, the established lunar regolith model is usually a uniform and ideal structural model, which is not well-suited to describe the real structure of the lunar regolith layer. The present study aims to explain the geological structural information contained in the channel 2 LPR (lunar penetrating radar) data. In this paper, the random medium theory and Apollo drilling core data are used to construct a modeling method based on discrete heterogeneous random media, and the simulation data are processed and collected by the electromagnetic numerical method FDTD (finite-difference time domain). When comparing the LPR data with the simulated data, the heterogeneous random medium model is more consistent with the actual distribution of the media in the lunar regolith layer. It is indicated that the interior structure of the lunar regolith layer at the landing site is not a pure lunar regolith medium but rather a regolith-rock mixture, with rocks of different sizes and shapes. Finally, several reasons are given to explain the formation of the geological structures of the lunar regolith layer at the Chang’E 3 landing site, as well as the possible geological stratification structure. |
| format | Article |
| id | doaj-art-00103c41cdbc4409a87cf5d4bb07dd7e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-00103c41cdbc4409a87cf5d4bb07dd7e2025-02-03T05:59:53ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/30132493013249Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing SiteChunyu Ding0Yan Su1Shuguo Xing2Shun Dai3Yuan Xiao4Jianqing Feng5Danqing Liu6Chunlai Li7Key Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaRenmin University of China, Beijing 100872, ChinaKey Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, ChinaIn the process of lunar exploration, and specifically when studying lunar surface structure and thickness, the established lunar regolith model is usually a uniform and ideal structural model, which is not well-suited to describe the real structure of the lunar regolith layer. The present study aims to explain the geological structural information contained in the channel 2 LPR (lunar penetrating radar) data. In this paper, the random medium theory and Apollo drilling core data are used to construct a modeling method based on discrete heterogeneous random media, and the simulation data are processed and collected by the electromagnetic numerical method FDTD (finite-difference time domain). When comparing the LPR data with the simulated data, the heterogeneous random medium model is more consistent with the actual distribution of the media in the lunar regolith layer. It is indicated that the interior structure of the lunar regolith layer at the landing site is not a pure lunar regolith medium but rather a regolith-rock mixture, with rocks of different sizes and shapes. Finally, several reasons are given to explain the formation of the geological structures of the lunar regolith layer at the Chang’E 3 landing site, as well as the possible geological stratification structure.http://dx.doi.org/10.1155/2017/3013249 |
| spellingShingle | Chunyu Ding Yan Su Shuguo Xing Shun Dai Yuan Xiao Jianqing Feng Danqing Liu Chunlai Li Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site International Journal of Antennas and Propagation |
| title | Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site |
| title_full | Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site |
| title_fullStr | Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site |
| title_full_unstemmed | Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site |
| title_short | Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site |
| title_sort | numerical simulations of the lunar penetrating radar and investigations of the geological structures of the lunar regolith layer at the chang e 3 landing site |
| url | http://dx.doi.org/10.1155/2017/3013249 |
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