A novel high-resolution algorithm for complex-direction search

Author

Qiu, Robert C. ; Lu, I-Tai

Author_Institution

Weber Res. Inst., Polytechnic Univ., Farmingdale, NY, USA

Volume

6

fYear

1996

fDate

7-10 May 1996

Firstpage

3189

Abstract

The location dependent effect of the acoustic field received by a linear array is modeled as an extra “loss” factor in the complex spectral variable. A high-resolution algorithm combining the singular value decomposition method and the eigen-matrix pencil method is then employed to find the complex directions representing the incoming directions and the location dependent factors of multipath and multimode arrivals. Five key features (namely, noise immunity, robustness, resolution, accuracy, and physical insight) of the proposed algorithm are studied using numerical examples

Keywords

acoustic field; array signal processing; direction-of-arrival estimation; eigenvalues and eigenfunctions; multipath channels; signal resolution; singular value decomposition; sonar arrays; sonar signal processing; spectral analysis; accuracy; acoustic field; complex spectral variable; complex-direction search; eigen-matrix pencil method; high resolution algorithm; incoming directions; linear array; location dependent effect; location dependent factors; loss factor; multimode arrivals; multipath arrivals; noise immunity; physical insight; robustness; singular value decomposition method; underwater waveguide; Acoustic arrays; Acoustic waveguides; Autoregressive processes; Direction of arrival estimation; Eigenvalues and eigenfunctions; Helium; Laboratories; Noise robustness; Signal resolution; Singular value decomposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.550554

Filename

550554