Release 18.01

[Acoular-users]

We are happy to release Acoular 18.01.

main changes in this version:

• Added new DAMAS solving strategies (BeamformerDamasPlus)
• Added Generalized Inverse Beamforming
• Floating point precision of CSM, PSF and beamformer customizable (default: float64) – affects cache file size
• PowerSpectra class now includes EigSpectra functionality (EigSpectra still callable for backwards compatibility)
• Inverse methods: unit of sound pressure for internal calculation customizable (default: nPa) for better numeric stability with sklearn solvers. Still returns all values in Pa.
• Bugfix: BeamformerFunctional works now with steering vector formulation II (inverse) and III (true level) which produced incorrect results in the past.
• Bugfix: BeamformerFunctional can only be called when the diagonal of the CSM is included
• Bugfix: Corrected calculation of PSF for steering vector formulation IV
• Bugfix: Behaviour of normalizing PSF at assumed source location (psf=1) is removed