1 July 2004 Windowed Fourier transform method for demodulation of carrier fringes
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Abstract
The Fourier transform method for demodulation of carrier fringes has been extensively developed and widely used in optical metrology. However, the Fourier transform being a global operation, it has poor ability to localize the signal properties and hence the result of FTM is not ideal. A windowed Fourier transform method is thus proposed, with advantages of signal localization and noise filtering. An example demonstrates the improved result compared to the traditional Fourier transform.
Qian Kemao, "Windowed Fourier transform method for demodulation of carrier fringes," Optical Engineering 43(7), (1 July 2004). https://doi.org/10.1117/1.1759333
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