An improved eigenvalue background noise reduction method for acoustic beamforming

•A modification of an existing eigenvalue background noise reduction method is proposed.•The new method is compared to conventional techniques on several numerical and experimental datasets.•The new method drastically improves the resolution on beamforming maps with an accurate level estimation. Thi...

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Veröffentlicht in:	Mechanical systems and signal processing 2020-06, Vol.140, p.106702, Article 106702
Hauptverfasser:	Fischer, J., Doolan, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic noise Aeroacoustics Background noise Background noise reduction Beamforming Eigenvalue decomposition Eigenvalues Noise levels Noise reduction Signal to noise ratio Sound sources Subtraction Wind tunnel testing Wind tunnels
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