Colloquium: Daniëlle Nijhof (C&O)
25 januari 2018 14:00 - Locatie: Lecture room D, Faculty of Aerospace Engineering, Kluyverweg 1, Delft.
High performance beamforming techniques
These are exciting times to work in the field of acoustics: researchers have a more granular understanding of sound than ever before due to the ability to generate, store, and analyze unprecedented amounts of acoustical data. Imaging sound sources is generally performed with a technique called conventional beamforming, which makes use of an array of microphones and of the phase differences of sound at the different microphones. Two new acoustical imaging techniques are global optimization and source power integration, improving on the short comings of conventional beamforming. The global optimization technique is able to separate closely spaced sound sources and the source power integration techniques can accurately determine auto-powers for distributed sources. This thesis investigated the performance of global optimization and source power integration in comparison to conventional beamforming.