Speaker locations from inter-speaker range measurements: closed-form estimator and performance relative to the Cramer-Rao lower bound

Author

Wilson, Scott ; Walters, Jeff ; Abel, Jonathan

Author_Institution

Center for Comput. Res. in Music & Acoust., Stanford Univ., CA, USA

Volume

2

fYear

2004

fDate

17-21 May 2004

Abstract

The problem of determining the relative positions of speakers in an array given noisy measurements of inter-speaker ranges is considered. A closed-form position estimator which minimizes a weighted equation error norm is presented. The information inequality is used to bound the position estimate mean square error and to gauge the accuracy of the closed-form estimator, which is shown to be nearly efficient.

Keywords

acoustic noise; array signal processing; mean square error methods; minimisation; parameter estimation; random noise; speech processing; Cramer-Rao lower bound; closed-form position estimator; inter-speaker range measurements; mean square error; speaker location determination; weighted equation error norm minimization; Acoustic measurements; Cramer-Rao bounds; Equations; Gaussian noise; Loudspeakers; Maximum likelihood estimation; Mean square error methods; Noise measurement; Position measurement; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1326276

Filename

1326276