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المؤلفAssous S.
المؤلفBoashash B.
تاريخ الإتاحة2022-05-31T19:01:37Z
تاريخ النشر2012
اسم المنشورEurasip Journal on Advances in Signal Processing
المصدرScopus
المعرّفhttp://dx.doi.org/10.1186/1687-6180-2012-49
معرّف المصادر الموحدhttp://hdl.handle.net/10576/31924
الملخصThis article considers the problem of phase synchrony and coherence analysis using a modified version of the S-transform, referred to here as the Modified S-transform (MST). This is a novel and important time-frequency approach to study the phase coupling between two or more different spatially recorded entities with nonstationary characteristics. The basic method includes a cross-spectral analysis to study the phase synchrony of nonstationary signals, and relies on some properties of the MST, such as phase preservation. We demonstrate the usefulness of the technique using simulated examples and real newborn EEG data. The results show the advantage of using the cross-MST in the study of the connectivity between different signals using the time-frequency coherence. The MST led to improvements in resolution of almost twofold over the standard S-Transform in the examples presented in the article.
اللغةen
الموضوعEEG signals
Instantaneous frequency
Phase synchrony
Quadratic time-frequency
S transforms
Time frequency
Time-frequency signal analysis
Array processing
Electrical engineering
Technology
Spectrum analysis
العنوانEvaluation of the modified S-transform for timefrequency synchrony analysis and source localisation
النوعArticle
رقم العدد1
رقم المجلد2012
dc.accessType Abstract Only


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