22.李凯——光学位相解调的新方法及其在无损检测中的应用

来源 :第二届实验力学青年学者学术研讨会 | 被引量 : 0次 | 上传用户：geolin1965

【摘要】

：

光学位相的解调是光学测量方法的重要基础.传统的位相解调方法,如傅里叶变换法、相移法等,对于静态或准静态问题的应用是成功的,然而,对于动态问题,它们则面临挑战.本文介绍

【作者】

：

李凯

【机构】

：

中国科学技术大学

【出处】

：

第二届实验力学青年学者学术研讨会

【发表日期】

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2012年11期

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光学位相的解调是光学测量方法的重要基础.传统的位相解调方法,如傅里叶变换法、相移法等,对于静态或准静态问题的应用是成功的,然而,对于动态问题,它们则面临挑战.本文介绍了两种针对动态问题而提出的光学位相解调新方法:基于加窗傅里叶滤波和最小二乘的时间序列解调方法以及广义正则化位相跟踪解调方法,前者通过估计两个连续状态间的位相增量实现解调,后者则是通过处理每个单独状态而实现解调.这两种方法都为动态问题的位相解调提供的新的途径,在无损检测中的应用中显示它们是有效、可行的.

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22.李凯——光学位相解调的新方法及其在无损检测中的应用

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