HauLiang/Acoustic-Beamforming-Methods

Several Classic Acoustic Imaging Methods, such as DAS, MUSIC, DAMAS, CLEAN-PSF, CLEAN-SC, and FFT-NNLS...

Acoustic-Beamforming-Methods

A simple demo for acoustic imaging, including the following methods:

Note that this code is a preliminary version. The latest scan-frequency version can be found at https://github.com/HauLiang/Acoustic-Beamforming-Advanced.

• DAS:
  

Van Veen, Barry D and Buckley, Kevin M, "Beamforming: A versatile approach to spatial filtering", IEEE assp magazine, 1988.

• MUSIC:
  

Schmidt, Ralph, "Multiple emitter location and signal parameter estimation", IEEE transactions on antennas and propagation, 1986.

• DAMAS:
  

Brooks, Thomas F and Humphreys, William M, "A deconvolution approach for the mapping of acoustic sources (DAMAS) determined from phased microphone arrays", Journal of sound and vibration, 2006.

• CLEAN-PSF:
  

Högbom, JA, "Aperture synthesis with a non-regular distribution of interferometer baselines", Astronomy and Astrophysics Supplement Series, 1974.

• CLEAN-SC:
  

Sijtsma, Pieter, "CLEAN based on spatial source coherence", International journal of aeroacoustics, 2007.

• FFT-NNLS:
  

Ehrenfried, Klaus and Koop, Lars, "Comparison of iterative deconvolution algorithms for the mapping of acoustic sources", AIAA journal, 2007.

• ...

If you want to know more about acoustic imaging, please refer to the following papers:

• Fundamentals of acoustic beamforming:

de Santana, Leandro, "Fundamentals of Acoustic Beamforming", Design and Operation of Aeroacoustic Wind Tunnel Tests for Group and Air Transport, 2017.

• A review of acoustic imaging methods:

Merino-Martínez, Roberto and Sijtsma, Pieter and Snellen, Mirjam and Ahlefeldt, Thomas and Antoni, Jerome and Bahr, Christopher J and Blacodon, Daniel and Ernst, Daniel and Finez, Arthur and Funke, Stefan and others, "A review of acoustic imaging methods using phased microphone arrays", CEAS Aeronautical Journal, 2019.

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