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Article Dans Une Revue IEEE Sensors Journal Année : 2023

Integration of Zero Crossing Method in a Non-Uniform Sampling System using Optical Feedback Interferometry

Résumé

In this paper, a zero-crossings based method is proposed to improve the displacement sensing performance of nonuniform sampling (NUS) theory based use of optical feedback interferometry (OFI) under moderate optical feedback regime. The incorporation of zero-crossings as phase quantization levels allows doubling the samples for subsequent interpolation, without using any dithering scheme. When compared to the simple dither-free NUS method, the proposed method yields an overall improvement in RMS error over a wide range of target motion amplitudes and frequencies, with maximum improvement at low amplitudes. Experimentally, an improvement of up to 87% is obtained in precision as compared to simple NUS system for an OFI sensor with laser wavelength of 785 nm.
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Dates et versions

hal-04142296 , version 1 (30-06-2023)

Identifiants

Citer

Hajira S Bazaz, Mohaimen M Fatimah, Layba Asim, Usman Zabit, Olivier D Bernal. Integration of Zero Crossing Method in a Non-Uniform Sampling System using Optical Feedback Interferometry. IEEE Sensors Journal, 2023, 23 (13), pp.14397 - 14405. ⟨10.1109/JSEN.2023.3275702⟩. ⟨hal-04142296⟩
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