Sonar reverberation synthesis using nonstationary autoregressive modeling

Author

Barlaud, M. ; Bruneau, J. ; Le Dard, M.

Author_Institution

LASSY, Univ. de Nice-Sophia Antipolis, France

fYear

1990

fDate

3-6 Apr 1990

Firstpage

2935

Abstract

A method for generating reverberation sequences is proposed. Following the same derivation of S.G. Chamberlain (1983) and J.C. Luby (1983), AR (autoregressive) parameters are computed, AR time-varying parameters are then approximated by a linear combination of time basis functions. This method allows the generation of a reverberation time series with nonstationary spectral characteristics without combining segments according to an overlapped window scheme. The results are illustrated on surface reverberation synthesis

Keywords

acoustic signal processing; reverberation; sonar; time series; AR time-varying parameters; nonstationary autoregressive modeling; nonstationary spectral characteristics; reverberation sequences; surface reverberation synthesis; time basis functions; time series; Autocorrelation; Character generation; Fourier transforms; Linear approximation; Oceans; Reverberation; Scattering; Sea surface; Signal processing; Sonar; Stochastic processes; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.116241

Filename

116241

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2957413