Title :
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
fDate :
1/1/1997 12:00:00 AM
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;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
