Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom
The trimaran is an advanced ship with high hydrodynamic performance, but the study of its electromagnetic characteristics and Doppler spectrum is insufficient. This study presents a new procedure for evaluating the scattering echo and Doppler spectrum of a trimaran in a time-varying ocean environmen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10192354/ |
| _version_ | 1797755153120493568 |
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| author | Yuxin Deng Jinxing Li Wangqiang Jiang Min Zhang |
| author_facet | Yuxin Deng Jinxing Li Wangqiang Jiang Min Zhang |
| author_sort | Yuxin Deng |
| collection | DOAJ |
| description | The trimaran is an advanced ship with high hydrodynamic performance, but the study of its electromagnetic characteristics and Doppler spectrum is insufficient. This study presents a new procedure for evaluating the scattering echo and Doppler spectrum of a trimaran in a time-varying ocean environment. First, based on the Reynolds-averaged Navier–Stokes equations, the interpolation wave-making method is proposed for the prediction of the six degrees of freedom motion of the trimaran. The method takes into account the viscous effect of the flow field and the complexity of wave motion, which applies to the seakeeping prediction of high-speed trimaran under different sea states. Second, an accelerated geometrical optics and physical optics algorithm using the light source function (GO-PO/LSF) is proposed, which uses the light source function to realize the visibility judgment of surfaces and greatly reduces the computation time. Then, the influence of different motion conditions on the backscattering echo of the composite scene is demonstrated by the capillary wave modification facet scattering model and GO-PO/LSF. Finally, the Doppler spectrum characteristics of the trimaran are presented by the standard spectrum estimation method, which provides a reference for radar detection and identification of ships in the microwave band. |
| first_indexed | 2024-03-12T17:43:39Z |
| format | Article |
| id | doaj.art-678b57cf3c604edea75fa900caef035c |
| institution | Directory Open Access Journal |
| issn | 2151-1535 |
| language | English |
| last_indexed | 2024-03-12T17:43:39Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-678b57cf3c604edea75fa900caef035c2023-08-03T23:00:10ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352023-01-01166889690110.1109/JSTARS.2023.329848510192354Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of FreedomYuxin Deng0https://orcid.org/0009-0004-7332-1910Jinxing Li1https://orcid.org/0000-0003-3671-6281Wangqiang Jiang2https://orcid.org/0000-0002-3783-1399Min Zhang3https://orcid.org/0000-0001-9992-0007School of Physics, Xidian University, Xi'an, ChinaSchool of Physics, Xidian University, Xi'an, ChinaSchool of Physics, Xidian University, Xi'an, ChinaSchool of Physics, Xidian University, Xi'an, ChinaThe trimaran is an advanced ship with high hydrodynamic performance, but the study of its electromagnetic characteristics and Doppler spectrum is insufficient. This study presents a new procedure for evaluating the scattering echo and Doppler spectrum of a trimaran in a time-varying ocean environment. First, based on the Reynolds-averaged Navier–Stokes equations, the interpolation wave-making method is proposed for the prediction of the six degrees of freedom motion of the trimaran. The method takes into account the viscous effect of the flow field and the complexity of wave motion, which applies to the seakeeping prediction of high-speed trimaran under different sea states. Second, an accelerated geometrical optics and physical optics algorithm using the light source function (GO-PO/LSF) is proposed, which uses the light source function to realize the visibility judgment of surfaces and greatly reduces the computation time. Then, the influence of different motion conditions on the backscattering echo of the composite scene is demonstrated by the capillary wave modification facet scattering model and GO-PO/LSF. Finally, the Doppler spectrum characteristics of the trimaran are presented by the standard spectrum estimation method, which provides a reference for radar detection and identification of ships in the microwave band.https://ieeexplore.ieee.org/document/10192354/Composite electromagnetic scatteringDoppler spectrumsix degrees of freedom (6-DOF)trimaran |
| spellingShingle | Yuxin Deng Jinxing Li Wangqiang Jiang Min Zhang Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Composite electromagnetic scattering Doppler spectrum six degrees of freedom (6-DOF) trimaran |
| title | Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom |
| title_full | Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom |
| title_fullStr | Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom |
| title_full_unstemmed | Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom |
| title_short | Investigation on the Radar Scattering and Doppler Spectrum From Trimaran Based on the Motion of Six Degrees of Freedom |
| title_sort | investigation on the radar scattering and doppler spectrum from trimaran based on the motion of six degrees of freedom |
| topic | Composite electromagnetic scattering Doppler spectrum six degrees of freedom (6-DOF) trimaran |
| url | https://ieeexplore.ieee.org/document/10192354/ |
| work_keys_str_mv | AT yuxindeng investigationontheradarscatteringanddopplerspectrumfromtrimaranbasedonthemotionofsixdegreesoffreedom AT jinxingli investigationontheradarscatteringanddopplerspectrumfromtrimaranbasedonthemotionofsixdegreesoffreedom AT wangqiangjiang investigationontheradarscatteringanddopplerspectrumfromtrimaranbasedonthemotionofsixdegreesoffreedom AT minzhang investigationontheradarscatteringanddopplerspectrumfromtrimaranbasedonthemotionofsixdegreesoffreedom |