Tikhonov regularized solutions for improvement of signal-to-noise ratio in case of auditory-evoked potentials.
In the present study, standard Tikhonov regularization (STR) Technique and the subspace regularization (SR) method have been applied to remove the additive EEG noise on average auditory-evoked potential (EP) signals. In methodological manner, the difference between these methods is the formation of...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 46; no. 10; pp. 1051 - 1057 |
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| Autores principales: | , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Oct2008
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105617532&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105617532 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Oct2008 vid: 46 iid: 10 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105617532 NLM18716817 2010158114 10.1007/s11517-008-0385-0 NLM18716817 105617532 ppf: 1051 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Tikhonov regularized solutions for improvement of signal-to-noise ratio in case of auditory-evoked potentials. aug: au: Aydin S Aydin, Serap affil: Electrical and Electronics Engineering Department, Engineering Faculty, Ondokuz Mayis University, Kurupelit, Samsun, Turkey sug: subj: Electroencephalography Methods Evoked Potentials, Auditory Signal Processing, Computer Assisted Electricity ab: In the present study, standard Tikhonov regularization (STR) Technique and the subspace regularization (SR) method have been applied to remove the additive EEG noise on average auditory-evoked potential (EP) signals. In methodological manner, the difference between these methods is the formation of regularization matrices which are used to solve the weighted problem of EP estimation. Those methods are compared to ensemble averaging (EA) with respect to signal-to-noise-ratio (SNR) improvement in experimental studies, simulations and pseudo-simulations. The results of tests no superiority of the SR in comparison to STR has been observed. In addition, the STR is found to be less computational complex. Moreover, results support the theoretical fact that the STR was introduced to be optimum for smooth solutions whereas the SR allows sharp variations in solutions. Thus, the STR is found to be more useful in removing the noise with the average signal remaining. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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