基于转角法的SIMO桥梁探伤雷达介电系数高精度层析反演方法、系统
By improving the iterative search self-focusing algorithm based on the rotation method and the minimum entropy criterion, the problems of large estimation error of refraction point coordinates at the medium interface and low self-focusing efficiency were solved, and high-precision dielectric coefficient inversion and imaging were achieved.
CN120491194BActive Publication Date: 2026-07-17HOHAI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HOHAI UNIV
- Filing Date
- 2025-05-16
- Publication Date
- 2026-07-17
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Figure CN120491194B_ABST
Abstract
本发明公开了一种基于转角法的SIMO桥梁探伤雷达介电系数高精度层析反演方法、系统，用于提高SIMO桥梁探伤雷达在各层介质分界面处的折射角估计精度和介电系数反演精度。该发明采用改进的转角法计算SIMO体制各接收阵元在各层分界面的折射点坐标，并基于最小熵准则对各层钢筋目标进行近场波束形成，高精度层析反演各介质层的介电系数。仿真实验结果表明，本发明能有效降低折射点估计误差，介电系数反演的精度提升约6.03%，显著增强了反演结果的准确性，具有工程应用前景。
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