4 papers
Effect of different clustering approaches on the multilevel fast multipole method for the Helmholtz equation
Wolfgang Kreuzer, Christian Kasess
The fast multipole method (FMM) is an important component for the boundary element method (BEM), because with the FMM the efficiency and feasibility of the BEM can be enhanced to a…
Localizing broadband noise sources using the Loève spectrum and a 2.5D approach
Christian H. Kasess, Wolfgang Kreuzer, Holger Waubke
The localization of moving sound sources using a microphone array is typically based on modifying the signal to compensate for the Doppler effect. In the time domain this compensat…
Localizing uniformly moving single-frequency sources using an inverse 2.5D approach
Christian H. Kasess, Wolfgang Kreuzer, Prateek Soni +1
Localizing linearly moving sound sources using microphone arrays is challenging as the transient nature of the signal leads to relatively short observation periods. Commonly, a mov…
About the Burton-Miller factor in the low frequency region
Wolfgang Kreuzer
The Burton-Miller method is a widely used approach in acoustics to enhance the stability of the boundary element method for exterior Helmholtz problems at so-called critical freque…