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The adaptive Wiener filtering method is considered with application to dynamic estimation of low-coherence interference fringe parameters. Feasibility to determine envelope of low-coherence interferometric signal as well as to assess local phase step of the discrete signal via the evaluated coefficients of the adaptive Wiener filter obtained under criterion of the mean square error minimization with respect to predetermined reference signal is demonstrated. Experimental results of low-coherence interferometric signal processing are presented for applications to non-contact surface profilometry and for evaluating internal micro structure of semitransparent objects.
Igor Gurov,Vlada Kapranova, andPavel Skakov
"Evaluation of low-coherence interference fringe parameters by the adaptive Wiener filtering method", Proc. SPIE 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine, 118451I (4 May 2021); https://doi.org/10.1117/12.2590832
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Igor Gurov, Vlada Kapranova, Pavel Skakov, "Evaluation of low-coherence interference fringe parameters by the adaptive Wiener filtering method," Proc. SPIE 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine, 118451I (4 May 2021); https://doi.org/10.1117/12.2590832