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Abstract:
本发明公开了基于自适应算法的激光Lamb波信号压缩感知重构方法,属于激光超声无损检测技术领域。首先通过信号采集系统获得激光Lamb波超声信号,把该信号在测量矩阵上投影,得到线性观测信号。用不同的测量数M,通过自适应正交匹配追踪算法对信号进行重构,随着观测值的增加,信号的重构精度提高。利用信号重构的性能评价标准,对信号的重构效果进行客观的评判。本方法采用自适应正交匹配追踪算法对激光Lamb波信号进行重构,在传统压缩感知算法的基础上增加了可变步长和自适应的特点,提高了信号的重构质量,降低了数据存储和传输的代价,提高了检测效率。
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Patent Info :
Type: 发明申请
Patent No.: CN202010233691.5
Filing Date: 2020-03-30
Publication Date: 2020-07-10
Pub. No.: CN111404553A
Applicants: 北京工业大学
Legal Status: 实质审查
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WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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