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dc.contributor.authorSinghal, Amit-
dc.date.accessioned2023-03-29T03:36:45Z-
dc.date.available2023-03-29T03:36:45Z-
dc.date.issued2021-
dc.identifier.issn1089-7798-
dc.identifier.urihttps://doi.org/10.1109/LCOMM.2020.3041722-
dc.identifier.urihttp://lrcdrs.bennett.edu.in:80/handle/123456789/645-
dc.description.abstractRobust signal processing in any application depends on the representation and the understanding of the signals in hand. There is a plethora of signal processing methods, wherein choosing a method over others would depend on the attributes of the signals and their intended application. As of now, only spectral stationarity is discussed for the deterministic signals. This letter presents a novel amplitude-modulation-frequency-modulation (AM-FM) based measure of non-stationarity of the deterministic signals by extracting AM-FM components using the Fourier decomposition method (FDM). FDM generates analytic signal representation, where the real and imaginary parts are the Hilbert transform pairs. Simple and intuitive measures of amplitude and frequency non-stationarity are presented to quantitatively assess the extent of non-stationarity. Both these measures are zero for stationary signals, while at least one of them is positive for the non-stationary signals. Important observations regarding the stationarity of a signal are made with the help of some examples. The utility of the concept is demonstrated via an application of EEG signal classification. © 1997-2012 IEEE.en_US
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.subjectAM-FM representation; Fourier decomposition method (FDM); Hilbert transform (HT); instantaneous amplitude (IA); instantaneous frequency (IF); measure of non-stationarity (MNS)en_US
dc.titleAF-MNS: A Novel AM-FM Based Measure of Non-Stationarityen_US
dc.typeArticleen_US
dc.indexedSWCen_US
Appears in Collections:Journal Articles_ECE

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