New time-frequency analyses of EMG and TMJ sound signals

Author

Zheng, Cunsheng ; Widmalm, Sven E. ; Williams, William J.

Author_Institution

Michigan Univ., Ann Arbor, MI, USA

fYear

1989

Firstpage

741

Abstract

The use of the reduced interference distribution (RID) to obtain improved energy density representation of nonstationary signals in time and frequency is described. Two applications of clinical interest, namely, 3-D graphical presentations of motor unit action potentials (MUAPs) and of temporomandibular joint (TMJ) sounds, have been performed and are presented to show the advantages of using the RID. It is found that the RID gives more detailed and more accurate information about those signals when compared with other methods for time-frequency representation

Keywords

bioacoustics; bioelectric potentials; biomedical measurement; muscle; signal processing; waveform analysis; 3D graphical presentations; energy density representation; motor unit action potentials; nonstationary signals; reduced interference distribution; temporomandibular joint sounds; time-frequency analysis; Application software; Biomedical engineering; Computer science; Electromyography; Interference; Signal analysis; Signal resolution; Signal restoration; Spectrogram; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in

Conference_Location

Seattle, WA

Type

conf

DOI

10.1109/IEMBS.1989.95960

Filename

95960