Title: Design of broadband beamformers robust against gain and phase errors in the microphone array characteristics
Authors: Doclo, Simon ×
Moonen, Marc #
Issue Date: Oct-2003
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE Transactions on signal processing vol:51 issue:10 pages:2511-2526
Abstract: Fixed broadband beamformers using small-size microphone arrays are known to be highly sensitive to errors in the microphone array characteristics. This paper describes two design procedures for designing broadband beamformers with an arbitrary spatial directivity pattern, which are robust against gain and phase errors in the microphone array characteristics. The first design procedure optimizes the mean performance of the broadband beamformer and requires knowledge of the gain and the phase probability density functions, whereas the second design procedure optimizes the worst-case performance by using a minimax criterion. Simulations with a small-size microphone array show the performance improvement that can be obtained by using a robust broadband beamformer design procedure.
ISSN: 1053-587X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
Faculty of Engineering Science - miscellaneous
× corresponding author
# (joint) last author

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