Fast demodulation algorithm for multi-wavelength LED frequency-division modulation transmission hyperspectral imaging
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2019.163110
Abstract: Abstract Transmission hyperspectral imaging (THI) has the potential for medical applications. The defect of low signal-to-noise ratio (SNR) resulting from strong absorption of biological tissues can be improved by combining frame accumulation with shape function… read more here.
Keywords: hyperspectral imaging; demodulation algorithm; transmission hyperspectral; fast demodulation ... See more keywords
Accurate and Fast Demodulation Algorithm for Multipeak FBG Reflection Spectra Using a Combination of Cross Correlation and Hilbert Transformation
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DOI: 10.1109/jlt.2017.2723945
Abstract: We demonstrate a combined cross correlation and Hilbert transform-based demodulation algorithm for tracking the wavelength shifts of fiber Bragg gratings (FBGs) having a multiple peak reflection spectrum. We show how the Hilbert transform can be… read more here.
Keywords: reflection; cross correlation; correlation hilbert; demodulation algorithm ... See more keywords
Improved PGC demodulation algorithm to eliminate modulation depth and intensity disturbance.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.459267
Abstract: In this paper, an improved phase generated carrier (PGC) demodulation algorithm based on frequency mixing and division difference is proposed. The effects of phase modulation depth variation and light intensity disturbance of the light source… read more here.
Keywords: demodulation; intensity disturbance; pgc demodulation; algorithm ... See more keywords