Broadband source location using frequency-independent models [spectral estimation]

Author

Grenier, Y.

Author_Institution

ENST, Paris, France

fYear

1988

fDate

3-5 Aug 1988

Firstpage

13

Lastpage

16

Abstract

The author describes a method for locating multiple broadband sources from the signals received on any array of sensors. The key idea is to compute a frequency-dependent spatial model that represents the evolution of the (spatial) wavenumbers associated with each source inside the whole frequency band of interest. The location function is then obtained from the spatial transfer function of this model. Two estimators are proposed, one based upon a least-squares minimization, and one based upon a diagonalization of the extended covariance matrix

Keywords

estimation theory; least squares approximations; spectral analysis; transfer functions; covariance matrix; diagonalization; estimators; frequency dependent autoregressive modelling; frequency-independent models; least squares minimisation; location function; multiple broadband sources; sensor array; spatial transfer function; spectral estimation; Amplitude modulation; Chirp modulation; Covariance matrix; Frequency dependence; Frequency estimation; Frequency modulation; Narrowband; Position measurement; Sensor arrays; Sensor phenomena and characterization;

fLanguage

English

Publisher

ieee

Conference_Titel

Spectrum Estimation and Modeling, 1988., Fourth Annual ASSP Workshop on

Conference_Location

Minneapolis, MN

Type

conf

DOI

10.1109/SPECT.1988.206154

Filename

206154