Package beamformer.algorithms.mvdr

Class MVDRBeam

java.lang.Object

beamformer.algorithms.BeamInformation

beamformer.algorithms.mvdr.MVDRBeam

public class MVDRBeam
extends BeamInformation

Constructor Summary

Constructors

Constructor	Description
MVDRBeam(MVDRalgorithm mvdRalgorithm, int channelMap, int sequenceNum, PamVector beamVec, PamVector[] elementLocs, double[] freqBins, double speedOfSound)	Main constructor

Method Summary

Modifier and Type	Method	Description
int	getNumFFTBins()	Return the number of FFT bins this beam needs to process.
int	getSequenceMap()
int	getStartIdx()	Return the index number in the FFT data unit that corresponds to the minimum frequency to analyse.
ComplexArray	process(org.apache.commons.math3.linear.FieldMatrix<org.apache.commons.math3.complex.Complex>[] Rinv)	Process a set of FFT Data units over the entire frequency range
ComplexArray	process(org.apache.commons.math3.linear.FieldMatrix<org.apache.commons.math3.complex.Complex>[] Rinv, int startBin, int numBins, int fullNumFFTBins)	Process a set of FFT Data units.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MVDRBeam

public MVDRBeam(MVDRalgorithm mvdRalgorithm,
 int channelMap,
 int sequenceNum,
 PamVector beamVec,
 PamVector[] elementLocs,
 double[] freqBins,
 double speedOfSound)

Main constructor

Parameters:

mvdRalgorithm -

channelMap -

sequenceNum -

beamVec -

elementLocs -

freqBins -

speedOfSound -

channelList -

weights -

Method Details

process

public ComplexArray process(org.apache.commons.math3.linear.FieldMatrix<org.apache.commons.math3.complex.Complex>[] Rinv)

Process a set of FFT Data units over the entire frequency range

Returns:

complex array of summed beamformed data. Note that the size of the array is the number of frequency bins in the full frequency range, as specified by the user in the parameters GUI

process

public ComplexArray process(org.apache.commons.math3.linear.FieldMatrix<org.apache.commons.math3.complex.Complex>[] Rinv,
 int startBin,
 int numBins,
 int fullNumFFTBins)

Process a set of FFT Data units. Note that we may only be processing a portion of the frequency range

Parameters:

Rinv - array containing one FFTDataUnit for each channel to analyse

startBin - the index in the FFTDataUnit to start processing at.

numBins - the number of FFT bins to process

fullNumFFTBins - the number of fft bins in an FFTDataUnit object

Returns:

complex array of summed beamformed data. Note that the size of the array is the number of frequency bins in the full frequency range, as specified by the user in the parameters GUI, even if only a portion of that range was actually processed

getSequenceMap

public int getSequenceMap()

Returns:

the sequenceMap

getStartIdx

public int getStartIdx()

Return the index number in the FFT data unit that corresponds to the minimum frequency to analyse. This refers to the entire frequency range as specified by the user in the parameters GUI

Returns:

the starting index number

getNumFFTBins

public int getNumFFTBins()

Return the number of FFT bins this beam needs to process. This is the entire frequency range, as specified by the user in the parameters GUI

Returns:

the number of frequency bins in the entire frequency range