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A multiple time scale minimum variance beamformer

Publication ,  Conference
Niezgoda, GH; Krolik, JL
Published in: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
January 1, 1993

In this paper expressions for mean output power and mean squared error are derived for the multiple time scale minimum variance beamformer in terms of adaptive degrees of freedom (DOF) and adaptation time scale when the same input data block is used to update weights and output. Analysis reveals the necessity of placing constraints on a d a p tation time scales to ensure the beamformer output is not ill-defined. It is shown that a signal cancellation effect arises when the same input data block is used to compute beamformer weights and form the output. The applicability of a multiple time scale beamformer when measurements consist of signals which are stationary over different time periods is demonstrated by simulation.

Duke Scholars

Published In

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

DOI

ISSN

1520-6149

ISBN

0780309464

Publication Date

January 1, 1993

Volume

4

Start / End Page

364 / 367
 

Citation

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Niezgoda, G. H., & Krolik, J. L. (1993). A multiple time scale minimum variance beamformer. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 4, pp. 364–367). https://doi.org/10.1109/ICASSP.1993.319670
Niezgoda, G. H., and J. L. Krolik. “A multiple time scale minimum variance beamformer.” In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 4:364–67, 1993. https://doi.org/10.1109/ICASSP.1993.319670.
Niezgoda GH, Krolik JL. A multiple time scale minimum variance beamformer. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 1993. p. 364–7.
Niezgoda, G. H., and J. L. Krolik. “A multiple time scale minimum variance beamformer.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 4, 1993, pp. 364–67. Scopus, doi:10.1109/ICASSP.1993.319670.
Niezgoda GH, Krolik JL. A multiple time scale minimum variance beamformer. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 1993. p. 364–367.
Journal cover image

Published In

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

DOI

ISSN

1520-6149

ISBN

0780309464

Publication Date

January 1, 1993

Volume

4

Start / End Page

364 / 367