Articles with "spectral coherence" as a keyword



Photo by ryanyeamanphoto1 from unsplash

Generalized spectral coherence for cyclostationary signals with α-stable distribution

Sign Up to like & get
recommendations!
Published in 2021 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2021.107737

Abstract: Abstract The statistical characteristics of cyclostationary signals vary periodically in time. In the Gaussian (or second-order) case this property is typically related to the periodic autocovariance function. Thus, many classical methods for detection of cyclostationarity… read more here.

Keywords: spectral coherence; cyclostationary signals; stable distribution; generalized spectral ... See more keywords
Photo by neonbrand from unsplash

Enhancement of decomposed spectral coherence using sparse nonnegative matrix factorization

Sign Up to like & get
recommendations!
Published in 2021 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2021.107747

Abstract: Abstract Integration of the spectral coherence over the domain of spectral frequency is one popular way for reaching the envelope spectrum which is an indispensable tool for the fault diagnosis of rotating machineries. Envelope spectrum… read more here.

Keywords: matrix factorization; coherence; spectral coherence; envelope spectrum ... See more keywords
Photo by gavinbiesheuvel from unsplash

A weighting function for improvement of spectral coherence based envelope spectrum

Sign Up to like & get
recommendations!
Published in 2021 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2021.107929

Abstract: Abstract Envelope analysis plays an essential role in fault diagnostics of rotating machinery. One popular method to attain the envelope spectrum is to integrate the spectral coherence over a chosen spectral frequency band. Considering the… read more here.

Keywords: envelope spectrum; spectral coherence; weighting function; coherence ... See more keywords
Photo from wikipedia

Spectral coherence properties of continuum generation in bulk crystals.

Sign Up to like & get
recommendations!
Published in 2022 at "Optics express"

DOI: 10.1364/oe.459123

Abstract: The stability of the phase difference between two white-light continua, generated from the same 180-fs pulses at ≃1035 nm, is assessed by a modified Bellini-Hänsch interferometer. Mutual spectral phase stability is studied and quantified as a… read more here.

Keywords: generation bulk; bulk crystals; continuum generation; properties continuum ... See more keywords
Photo by kellysikkema from unsplash

Evaluation of Electroencephalogram Signals of the Professional Pianists during Iconic Memory and Working Memory Tests Using Spectral Coherence

Sign Up to like & get
recommendations!
Published in 2018 at "Journal of Medical Signals and Sensors"

DOI: 10.4103/2228-7477.232084

Abstract: Background: Today, the neuroscience has growth in many aspects, and the effects of different factors on memory obtained many achievements. Several scientific and experimental studies evaluated effects of music on style and behavior of people;… read more here.

Keywords: memory; iconic memory; spectral coherence; working memory ... See more keywords