Estimation of FM modulation of multi-component signals from the Fourier phase

Author

Nelson, Douglas J.

Author_Institution

Department of Defence, Fort George G. Meade, MD, USA

Volume

6

fYear

1998

fDate

12-15 May 1998

Firstpage

3421

Abstract

The spectral phase is a quantity which is normally discarded in analyzing signals. The concept of a complex time-frequency representation is presented in which the rows are narrow bandpass filters and the columns are broadband Fourier spectra. Methods are developed which exploit the spectral phase of the surface to recover the FM modulating function of an FM modulated tone and an FM modulated multi-component harmonic signal

Keywords

Fourier analysis; band-pass filters; frequency modulation; harmonic analysis; signal representation; spectral analysis; time-frequency analysis; FM modulated tone; FM modulation estimation; Fourier phase; broadband Fourier spectra; columns; complex time-frequency representation; modulating function recovery; multi-component harmonic signal; multi-component signals; narrow bandpass filters; rows; signal analysis; spectral phase; Fourier transforms; Frequency estimation; Frequency modulation; Narrowband; Periodic structures; Phase estimation; Phase modulation; Power harmonic filters; Signal analysis; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on

Conference_Location

Seattle, WA

ISSN

1520-6149

Print_ISBN

0-7803-4428-6

Type

conf

DOI

10.1109/ICASSP.1998.679600

Filename

679600