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- W2803449713 abstract "We propose beamforming method that minimizes the ℓ <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sub> norm of a beamformer output vector under the same distortionless constraint as that of the conventional minimum power distortionless response (MPDR) beamformer. Using the ℓ <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sub> norm makes the beamformer output sparse. This leads to reducing the residual elements of the interference signal. In addition, the sensitivity of the proposed beamformer can be controlled by adding a norm constraint as in the MPDR beamformer. The proposed method improved the signal-to-interference-noise ratio by 7 dB from that of the MPDR beamformer for reverberation time T <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>60</sub> = 300 ms in a simulation." @default.
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- W2803449713 date "2018-07-01" @default.
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- W2803449713 title "Distortionless Beamforming Optimized With <inline-formula> <tex-math notation=LaTeX>$ell _1$</tex-math> </inline-formula>-Norm Minimization" @default.
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- W2803449713 doi "https://doi.org/10.1109/lsp.2018.2834870" @default.
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