| 时频域双重分析法抗干扰移相干涉术 |
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| 引用本文： | 王明,郝群,朱秋东,胡摇.时频域双重分析法抗干扰移相干涉术[J].光学学报,2011(11):146-150. |
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| 作者姓名： | 王明 郝群 朱秋东 胡摇 |
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| 作者单位： | 北京理工大学光电学院; |
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| 基金项目： | 国家自然科学基金(60578053)资助课题 |
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| 摘 要： | 针对移相干涉术易受振动、气流等扰动影响的问题,提出一种时频域双重分析法的抗干扰移相干涉测量方法.采集一系列连续移相的干涉图,通过对干涉图上各点时序光强进行频谱的宽带滤波提取到干涉图采集过程中真实的相位变化,对时序的相位变化信息进行线性统计得到各点初始相位的计算值.在干涉图帧数足够多的情况下,线性统计后随机噪声的影响趋于...
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| 关 键 词： | 测量 移相干涉术 抗扰动 时频域双重分析方法 |
Anti-Disturbance Phase-Shifting Interferometry Method Time-and-Frequency-Domain |
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| Wang Ming Hao Qun Zhu Qiudong Hu Yao.Anti-Disturbance Phase-Shifting Interferometry Method Time-and-Frequency-Domain[J].Acta Optica Sinica,2011(11):146-150. |
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| Authors: | Wang Ming Hao Qun Zhu Qiudong Hu Yao |
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| Institution: | Wang Ming Hao Qun Zhu Qiudong Hu Yao(Optoelectronic School,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Because interferometry is highly sensitive to disturbance such as vibration and air flow,a time-and-frequency domain(TFD) interferometry is proposed.A large number of continuous phase-shifting interferograms are captured.A distorted series of phase variety during fringe capturing is obtained through wide bandwidth filter to the spectrum of intensity series from a particular pixel,and then a linear statistic of it gives the measuring result of initial phase.With a large enough number of frames,the linear sta... |
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| Keywords: | measurement phase-shifting interferometry anti disturbance time-and-frequency domain method |
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