Time-frequency analysis using time-order representation and Wigner distribution

Author

Pachori, Ram Bilas ; Sircar, Pradip

Author_Institution

Commun. Res. Center, Int. Inst. of Inf. Technol., Hyderabad

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

1

Lastpage

6

Abstract

A new method for time-frequency analysis of a signal, which combines the time-order representation and the Wigner-Ville distribution (WVD) has been presented in this paper. The time-order representation based on short-term Fourier-Bessel (FB) expansion, decomposes a multicomponent signal into a number of monocomponent signals, and then the WVD technique is applied on each component of the composite signal to analyze its time-frequency distribution (TFD). Simulation results with real bat signal are included to illustrate the effectiveness of the proposed method.

Keywords

Bessel functions; Fourier transforms; Wigner distribution; signal representation; time-frequency analysis; Wigner-Ville distribution; monocomponent signal decomposition; short-term Fourier-Bessel expansion; time-frequency analysis; time-order representation; Acoustic applications; Frequency domain analysis; Information technology; Noise reduction; Radar applications; Signal analysis; Signal design; Signal resolution; Speech; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2008 - 2008 IEEE Region 10 Conference

Conference_Location

Hyderabad

Print_ISBN

978-1-4244-2408-5

Electronic_ISBN

978-1-4244-2409-2

Type

conf

DOI

10.1109/TENCON.2008.4766782

Filename

4766782