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2 November 2018 Selection of frequency domain filter based on match of different location-specific points
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Abstract
This study presents an algorithm for automatic selection of a frequency domain filter for the Fourier transform method of interference fringe analysis in a pulse-train interferometer. In this approach, the equality between the interference-fringe envelope peak point and the phase-crossing point of different frequency components is used to distinguish between the signal and noise in the frequency domain. The efficacy of the proposed technique is demonstrated by numerical experiments.
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Dong Wei, Kenta Enoki, and Masato Aketagawa "Selection of frequency domain filter based on match of different location-specific points", Proc. SPIE 10819, Optical Metrology and Inspection for Industrial Applications V, 108191F (2 November 2018); https://doi.org/10.1117/12.2500637
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