Title :
Analytical evaluation of a self-calibrating microphone array
Author :
Nordholm, Sven ; Claesson, Ingvar
Author_Institution :
Dept. of Signal Process, Univ. of Karlskrona/Ronneby, Sweden
Abstract :
This paper gives an analytical description of an adaptive microphone array which facilitates a simple built-in calibration to the environment and instrumentation. The scheme offers several advantages, such as a simple calibration procedure and reduced target signal distortion. The analysis employs noncausal Wiener filters yielding compact and effective theoretical suppression limits
Keywords :
Wiener filters; acoustic noise; acoustic signal processing; acoustic transducer arrays; adaptive signal processing; array signal processing; calibration; direction-of-arrival estimation; filtering theory; microphones; noise abatement; adaptive microphone array; built-in calibration; instrumentation; mobile telephones; noncausal Wiener filters; reduced target signal distortion; self-calibrating microphone array; suppression limits; Acoustic noise; Calibration; Filtering; Loudspeakers; Microphone arrays; Reverberation; Signal analysis; Telephony; Transfer functions; Wiener filter;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599614
