Acoular 18.01 documentation


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class acoular.fbeamform.BeamformerEig

Bases: acoular.fbeamform.BeamformerBase

Beamforming using eigenvalue and eigenvector techniques, see Sarradj et al., 2005.

freq_data = Trait(PowerSpectra, desc="freq data object")

PowerSpectra object that provides the cross spectral matrix and eigenvalues

n = Int(-1, desc="No. of eigenvalue")

Number of component to calculate: 0 (smallest) … numchannels-1; defaults to -1, i.e. numchannels-1

calc(ac, fr)

Calculates the result for the frequencies defined by freq_data

This is an internal helper function that is automatically called when accessing the beamformer’s result or calling its synthetic() method.


ac : array of floats

This array of dimension ([number of frequencies]x[number of gridpoints]) is used as call-by-reference parameter and contains the calculated value after calling this method.

fr : array of booleans

The entries of this [number of frequencies]-sized array are either ‘True’ (if the result for this frequency has already been calculated) or ‘False’ (for the frequencies where the result has yet to be calculated). After the calculation at a certain frequency the value will be set to ‘True’


This method only returns values through the ac and fr parameters

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