L‐band depolarised radar back scattering from Martian topographic surface: A numerical study
Abstract The interaction of radar signals with a planetary surface is critical for the utility of radar data. Herein, a power‐law roughness spectrum is used to model the roughness and an inhomogeneous vertical permittivity to describe the dielectrics from the surface of Mars. Numerical simulations o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-04-01
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| Series: | IET Radar, Sonar & Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rsn2.12039 |
| _version_ | 1828418022441746432 |
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| author | Ying Yang Yu Liu Kun‐Shan Chen Jingwen Li |
| author_facet | Ying Yang Yu Liu Kun‐Shan Chen Jingwen Li |
| author_sort | Ying Yang |
| collection | DOAJ |
| description | Abstract The interaction of radar signals with a planetary surface is critical for the utility of radar data. Herein, a power‐law roughness spectrum is used to model the roughness and an inhomogeneous vertical permittivity to describe the dielectrics from the surface of Mars. Numerical simulations of depolarised radar backscattering are then conducted. To gain a more complete picture of depolarised characteristics, a wide range of surface roughness is considered. Results reveal that the depolarised backscattering is sensitive to the dielectric profiles with –10 dB is observed. The polarization conversion ratio, the ratio of depolarisation to total polarization backscattering, is a sensitive indicator of dielectric profiles and roughness, and thus is useful in retrieving dielectric profile. |
| first_indexed | 2024-12-10T14:29:55Z |
| format | Article |
| id | doaj.art-f372486df1f1433594325b68d4d9e18b |
| institution | Directory Open Access Journal |
| issn | 1751-8784 1751-8792 |
| language | English |
| last_indexed | 2024-12-10T14:29:55Z |
| publishDate | 2021-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj.art-f372486df1f1433594325b68d4d9e18b2022-12-22T01:44:58ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922021-04-0115434034710.1049/rsn2.12039L‐band depolarised radar back scattering from Martian topographic surface: A numerical studyYing Yang0Yu Liu1Kun‐Shan Chen2Jingwen Li3College of Geomatic and Geoinformation Guilin University of Technology Guilin ChinaAerospace Information Research Institute Chinese Academy of Sciences Beijing ChinaCollege of Geomatic and Geoinformation Guilin University of Technology Guilin ChinaCollege of Geomatic and Geoinformation Guilin University of Technology Guilin ChinaAbstract The interaction of radar signals with a planetary surface is critical for the utility of radar data. Herein, a power‐law roughness spectrum is used to model the roughness and an inhomogeneous vertical permittivity to describe the dielectrics from the surface of Mars. Numerical simulations of depolarised radar backscattering are then conducted. To gain a more complete picture of depolarised characteristics, a wide range of surface roughness is considered. Results reveal that the depolarised backscattering is sensitive to the dielectric profiles with –10 dB is observed. The polarization conversion ratio, the ratio of depolarisation to total polarization backscattering, is a sensitive indicator of dielectric profiles and roughness, and thus is useful in retrieving dielectric profile.https://doi.org/10.1049/rsn2.12039backscatterelectromagnetic wave polarisationelectromagnetic wave scatteringlight polarisationMarspermittivity |
| spellingShingle | Ying Yang Yu Liu Kun‐Shan Chen Jingwen Li L‐band depolarised radar back scattering from Martian topographic surface: A numerical study IET Radar, Sonar & Navigation backscatter electromagnetic wave polarisation electromagnetic wave scattering light polarisation Mars permittivity |
| title | L‐band depolarised radar back scattering from Martian topographic surface: A numerical study |
| title_full | L‐band depolarised radar back scattering from Martian topographic surface: A numerical study |
| title_fullStr | L‐band depolarised radar back scattering from Martian topographic surface: A numerical study |
| title_full_unstemmed | L‐band depolarised radar back scattering from Martian topographic surface: A numerical study |
| title_short | L‐band depolarised radar back scattering from Martian topographic surface: A numerical study |
| title_sort | l band depolarised radar back scattering from martian topographic surface a numerical study |
| topic | backscatter electromagnetic wave polarisation electromagnetic wave scattering light polarisation Mars permittivity |
| url | https://doi.org/10.1049/rsn2.12039 |
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