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Multiple Broad-Band Source Location Using Steered Covariance Matrices

Publication ,  Journal Article
Krolik, J; Swingler, D
Published in: IEEE Transactions on Acoustics, Speech, and Signal Processing
January 1, 1989

This paper presents an approach for reducing the threshold observation time required to achieve high-resolution localization of multiple broadband sources. The proposed techniques are based on a spacetime statistic called the steered covariance matrix (STCM). The STCM, like the wellknown cross-spectral density matrix (CSDM), has asymptotic properties which facilitate high-resolution source localization. In broadband settings, however, the STCM has the advantage that it can be estimated with much greater statistical stability than the CSDM. In this paper, the STCM is used in conjunction with minimum variance and linear predictive spectral estimation to obtain the steered minimum variance (STMV) and steered linear prediction (STLP) methods. Analytical and simulation results are presented which suggest the STMV and STLP methods exhibit lower threshold observation times than their CSDM-based counterparts. © 1989 IEEE

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Published In

IEEE Transactions on Acoustics, Speech, and Signal Processing

DOI

ISSN

0096-3518

Publication Date

January 1, 1989

Volume

37

Issue

10

Start / End Page

1481 / 1494
 

Citation

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Krolik, J., & Swingler, D. (1989). Multiple Broad-Band Source Location Using Steered Covariance Matrices. IEEE Transactions on Acoustics, Speech, and Signal Processing, 37(10), 1481–1494. https://doi.org/10.1109/29.35386
Krolik, J., and D. Swingler. “Multiple Broad-Band Source Location Using Steered Covariance Matrices.” IEEE Transactions on Acoustics, Speech, and Signal Processing 37, no. 10 (January 1, 1989): 1481–94. https://doi.org/10.1109/29.35386.
Krolik J, Swingler D. Multiple Broad-Band Source Location Using Steered Covariance Matrices. IEEE Transactions on Acoustics, Speech, and Signal Processing. 1989 Jan 1;37(10):1481–94.
Krolik, J., and D. Swingler. “Multiple Broad-Band Source Location Using Steered Covariance Matrices.” IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 37, no. 10, Jan. 1989, pp. 1481–94. Scopus, doi:10.1109/29.35386.
Krolik J, Swingler D. Multiple Broad-Band Source Location Using Steered Covariance Matrices. IEEE Transactions on Acoustics, Speech, and Signal Processing. 1989 Jan 1;37(10):1481–1494.

Published In

IEEE Transactions on Acoustics, Speech, and Signal Processing

DOI

ISSN

0096-3518

Publication Date

January 1, 1989

Volume

37

Issue

10

Start / End Page

1481 / 1494