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Original name record: 南京航空航天大学; 北京宇航系统工程研究所

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1 indexed patent records

№ CN121330116AInvention
Active

一种基于强约束贝叶斯优化的局部波数估计损伤最优成像方法

本发明公开了一种基于强约束贝叶斯优化的局部波数估计损伤最优成像方法，涉及材料结构健康监测技术领域，其技术方案要点是：包括如下步骤：获取薄壁结构表面的三维导波信号，通过多维傅里叶变换将其转换到频率‑波数域，获得滤波后的傅里叶谱；对滤波后的傅里叶谱进行自适应提取目标模态滤波局部波数，获得局部波数估计值；获取成像质量评价指标和约束频段，引入强约束贝叶斯优化方法对局部波数估计值进行最优频率搜索，输出稳定的损伤成像结果。本发明将依赖人工挑选频率变为数据驱动、强约束，抗噪声、样本高效的优化问题，提高局部波数估计法成像在复杂结构损伤检测中的成像质量与鲁棒性，构建一种高效的频率选择与成像优化方法。

❖南京航空航天大学; 北京宇航系统工程研究所张超; 陈金鑫; 庞科技; 裘进浩; 杨旭堃; 季宏丽§ 4/10 ClaimsG06T 11/60 (2026.01), G01N 29/06 (2006.01), G01N 29/44 (2006.01) +19