Intermediate-frequency error identification of precision optical surface based on the Hilbert spectrum and instantaneous frequency filtering method
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DOI: 10.1117/1.oe.57.6.064108
Abstract: Abstract. To evaluate the intermediate-frequency error of a precision optical surface, a method for more accurate separation and identification of the intermediate-frequency error is proposed. This method is based on the Hilbert spectrum and the… read more here.
Keywords: intermediate frequency; frequency; spectrum; based hilbert ... See more keywords
Spasticity assessment based on the Hilbert–Huang transform marginal spectrum entropy and the root mean square of surface electromyography signals: a preliminary study
Sign Up to like & getrecommendations! Published in 2018 at "BioMedical Engineering OnLine"
DOI: 10.1186/s12938-018-0460-1
Abstract: BackgroundMost of the objective and quantitative methods proposed for spasticity measurement are not suitable for clinical application, and methods for surface electromyography (sEMG) signal processing are mainly limited to the time-domain. This study aims to… read more here.
Keywords: study; spasticity; based hilbert; surface electromyography ... See more keywords
TDLAS second harmonic demodulation based on Hilbert transform
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DOI: 10.1371/journal.pone.0278724
Abstract: A demodulation method for tunable diode laser absorption spectroscopy (TDLAS) second harmonic based on the Hilbert transform is proposed in this paper. The second harmonic of the TDLAS signal can be easily obtained without a… read more here.
Keywords: demodulation; second harmonic; based hilbert; tdlas second ... See more keywords
Spectral denoising based on Hilbert–Huang transform combined with F-test
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2022.949461
Abstract: Due to the influence of uncontrollable factors such as the environment and instruments, noise is unavoidable in a spectral signal, which may affect the spectral resolution and analysis result. In the present work, a novel… read more here.
Keywords: hilbert huang; transform; spectral denoising; based hilbert ... See more keywords