Enhanced demodulation scheme of sinusoidal phase modulated self-mixing interferometer for displacement measurement
Sign Up to like & getrecommendations! Published in 2025 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/adeacd
Abstract: An enhanced demodulation scheme for sinusoidal phase modulated self-mixing interferometer (SPM-SMI) utilizing an electro-optic modulator is designed and experimentally evaluated. The phase generated carrier (PGC) demodulation technique, including the differential and cross-multiplication algorithm and the… read more here.
Keywords: scheme; demodulation scheme; enhanced demodulation; measurement ... See more keywords
A Dual Modulation Technique Combine PGC Demodulation Scheme for Long Cavity Fabry–Perot Acoustic Wave Sensors
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3521040
Abstract: In this article, we propose a modified phase generated carrier (PGC) demodulation scheme combining dual modulation techniques for acoustic wave detection by long-cavity Fabry–Perot sensors. The scheme is effective in solving the weakness of the… read more here.
Keywords: scheme; pgc demodulation; demodulation scheme; modulation ... See more keywords
Highly Robust PGC Demodulation Scheme for Fiber Optic Interferometric Sensors
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2023.3336331
Abstract: The quadrature signals in the phase generated carrier (PGC) demodulation scheme inevitably introduce nonlinear errors degrading the robustness. A highly robust PGC demodulation scheme based on a Lissajous figure judging module and a renormalization ellipse… read more here.
Keywords: robust pgc; pgc demodulation; highly robust; demodulation scheme ... See more keywords
High precision and low noise demodulation scheme using adaptive fast fourier transform for fiber-optic interferometric sensors.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.544252
Abstract: This paper presents an adaptive fast Fourier transform (adaptive FFT) demodulation scheme, aimed at enhancing the precision and noise suppression capability of signal processing in fiber-optic interferometric sensors. By adaptively optimizing the length of the… read more here.
Keywords: scheme; demodulation scheme; fiber optic; adaptive fft ... See more keywords