Optimal geometry to resolve 3D deformation from multiple GB-DInRad
Optimal geometry to resolve 3D deformation from multiple GB-DInRad
复制标题
用于解决多个 GB-DInRad 的 3D 变形的最佳几何结构
DOI：
10.1049/el.2019.1564
复制
发表时间：
2019
影响因子：
1.1
通讯作者：
Zhao Zheng
中科院分区：
文献类型：
--
作者：
Hu Cheng;Deng Yunkai;Tian Weiming;Zhao Zheng
When multiple ground‐based differential interferometric radar (GB‐DInRad) systems are utilised together to resolve three‐dimensional (3D) deformation, the resolving accuracy is related with the measurement geometry of these radar systems. This Letter focuses on how to determine an optimal geometry. Based on the resolving equation of the 3D deformation, the Geometric Dilution of Precision (GDOP) is defined. Then the minimum value of the GDOP is calculated and a detailed geometrical analysis is made to determine the geometrical conditions of the minimum GDOP. The results prove that the optimal geometry could be obtained when the unit measurement vectors of these radar systems construct a regular pyramid with a specific structure. A numerical simulation is utilised to validate the analysis conclusion.
