A closed-form location estimator for use with room environment microphone arrays

Author

Brandstein, Michael S. ; Adcock, John E. ; Silverman, Harvey F.

Author_Institution

Div. of Eng., Brown Univ., Providence, RI, USA

Volume

5

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

45

Lastpage

50

Abstract

The linear intersection (LI) estimator, which is a closed-form method for the localization of source positions given sensor array time-delay estimate information, is presented. The LI estimator is shown to be robust and accurate, to closely model the search-based ML estimator, and to outperform a benchmark algorithm. The computational complexity of the LI estimator is suitable for use in real-time microphone-array applications where search-based location algorithms may be infeasible

Keywords

acoustic signal detection; acoustic signal processing; acoustic transducer arrays; architectural acoustics; array signal processing; computational complexity; delays; direction-of-arrival estimation; microphones; benchmark algorithm; closed form location estimator; closed form method; computational complexity; linear intersection estimator; real-time microphone array; room environment microphone arrays; search based ML estimator; sensor array; source position localization; time difference of arrival; time-delay estimate information; Closed-form solution; Delay estimation; Laboratories; Maximum likelihood estimation; Microphone arrays; Position measurement; Sensor arrays; Speech; Switches; Systems engineering and theory;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/89.554268

Filename

554268