Perturbation analysis of EGG for detecting laryngeal pathology

Author

Song, Chulgyu ; Kim, Jongmyoung ; Lee, Myoungho

Author_Institution

Dept. of Electr. Eng., Yonsei Univ., Seoul, South Korea

fYear

1994

fDate

1994

Firstpage

1344

Abstract

In this study, the authors have evaluated the effect of amplitude and frequency perturbation of electroglottograph (EGG) signal during single vowels associated with laryngeal pathology. The normal EGG signal was correctly characterized by a 9th order autoregressive (AR) model using the parametric method. The optimal order of the AR model was analyzed by determining the transfer function. Perturbations in the fundamental pitch and in the peak amplitude of EGG signal were derived with a 4-electrode system using the modulation-demodulation techniques investigated for the purpose of developing a decision criteria for laryngeal function identification

Keywords

bioelectric potentials; 9th order autoregressive model; decision criteria; fundamental pitch; laryngeal function identification; model optimal order; modulation-demodulation techniques; parametric method; perturbation analysis; single vowels; transfer function; Amplitude modulation; Autoregressive processes; Demodulation; Electrodes; Frequency; Larynx; Pathology; Signal processing; Skin; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE

Conference_Location

Baltimore, MD

Print_ISBN

0-7803-2050-6

Type

conf

DOI

10.1109/IEMBS.1994.415464

Filename

415464