Vegetation covered surface Doppler near-field echo simulation method
The invention provides a vegetation-covered surface Doppler near-field echo simulation method, which comprehensively utilizes a detector antenna pattern and a ray tracing method based on kd tree acceleration to realize quick acquisition of ground visible surface elements, and realizes quick acquisit...
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Format | Patent |
Language | Chinese English |
Published |
03.01.2023
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Abstract | The invention provides a vegetation-covered surface Doppler near-field echo simulation method, which comprehensively utilizes a detector antenna pattern and a ray tracing method based on kd tree acceleration to realize quick acquisition of ground visible surface elements, and realizes quick acquisition of the ground visible surface elements on the basis of a dual-scale model through the thought of measurement and calculation combination. A correction factor fitted according to a vegetation coverage earth surface electromagnetic scattering measurement data numerical value is added, and the calculation efficiency and the calculation precision are both considered.
本发明提供一种植被覆盖地表多普勒近场回波仿真方法,综合利用探测器天线方向图和基于kd树加速的射线追踪方法,实现了地面可见面元快速获取,通过测算结合的思路,在双尺度模型的基础上,添加了根据植被覆盖地表电磁散射测量数据数值拟合的修正因子,兼顾了计算效率和计算精度。 |
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AbstractList | The invention provides a vegetation-covered surface Doppler near-field echo simulation method, which comprehensively utilizes a detector antenna pattern and a ray tracing method based on kd tree acceleration to realize quick acquisition of ground visible surface elements, and realizes quick acquisition of the ground visible surface elements on the basis of a dual-scale model through the thought of measurement and calculation combination. A correction factor fitted according to a vegetation coverage earth surface electromagnetic scattering measurement data numerical value is added, and the calculation efficiency and the calculation precision are both considered.
本发明提供一种植被覆盖地表多普勒近场回波仿真方法,综合利用探测器天线方向图和基于kd树加速的射线追踪方法,实现了地面可见面元快速获取,通过测算结合的思路,在双尺度模型的基础上,添加了根据植被覆盖地表电磁散射测量数据数值拟合的修正因子,兼顾了计算效率和计算精度。 |
Author | XIE BING HUANG ZHIYONG GAO PENGCHENG ZHANG RUNJUN JIANG XIAYU |
Author_xml | – fullname: HUANG ZHIYONG – fullname: GAO PENGCHENG – fullname: JIANG XIAYU – fullname: XIE BING – fullname: ZHANG RUNJUN |
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DocumentTitleAlternate | 一种植被覆盖地表多普勒近场回波仿真方法 |
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Snippet | The invention provides a vegetation-covered surface Doppler near-field echo simulation method, which comprehensively utilizes a detector antenna pattern and a... |
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SubjectTerms | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
Title | Vegetation covered surface Doppler near-field echo simulation method |
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