Parameter estimation of optical fringes with quadratic phase using the fractional Fourier transform

Ming Feng Lu*, Feng Zhang, Ran Tao, Guo Qiang Ni, Ting Zhu Bai, Wen Ming Yang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

42 引用 (Scopus)

摘要

Optical fringes with a quadratic phase are often encountered in optical metrology. Parameter estimation of such fringes plays an important role in interferometric measurements. A novel method is proposed for accurate and direct parameter estimation using the fractional Fourier transform (FRFT), even in the presence of noise and obstacles. We take Newton's rings fringe patterns and electronic speckle pattern interferometry (ESPI) interferograms as classic examples of optical fringes that have a quadratic phase and present simulation and experimental results demonstrating the performance of the proposed method.

源语言英语
页(从-至)1-16
页数16
期刊Optics and Lasers in Engineering
74
DOI
出版状态已出版 - 28 5月 2015

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