Package beamformer

Class BeamFormerBaseProcess

java.lang.Object

PamguardMVC.PamProcess

beamformer.BeamFormerBaseProcess

All Implemented Interfaces:

PamObserver, ProcessAnnotator

Direct Known Subclasses:

BeamFormerProcess, BeamFormLocProcess, WrappedBeamFormerProcess

public abstract class BeamFormerBaseProcess
extends PamProcess

Base process for both continuous and detect-then-localise beam forming.

Author:

Doug Gillespie

Field Summary

Fields inherited from class PamguardMVC.PamProcess

outputDataBlocks, parentDataBlock, processName, sampleRate

Constructor Summary

Constructors

Constructor	Description
BeamFormerBaseProcess(BeamFormerBaseControl beamFormerBaseControl, boolean publishBeamOutput)

Method Summary

Modifier and Type	Method	Description
FFTDataBlock	findFFTDataBlock()	Find the source of FFT data for the beam former.
BeamGroupProcess	findGroupProcess(int channelMap)	find a beam group process which matches a channel map.
int	frequencyToBin(double frequency)	Convert a frequency to the nearest bin.
int[]	frequencyToBin(double[] frequency)	Convert an array of frequency values to the nearest bins.
BeamFormerDataBlock	getBeamFormerOutput()
BeamOGramDataBlock	getBeamOGramOutput()
int[]	getChannelGroupLUT()
int	getChannelsForSequenceMap(int sequenceMap)	Given a sequenceMap, this function returns all of the channels that are associated with it.
FFTDataBlock	getFftDataSource()
ArrayList<BeamGroupProcess>	getGroupProcesses()
void	makeContinuousBeams(PamObservable o, PamDataUnit pamDataUnit)
void	notifyModelChanged(int changeType)
void	prepareProcess()	Called for each process before any of them receive the PamStart command

Methods inherited from class PamguardMVC.PamProcess

absMillisecondsToSamples, absSamplesToMilliseconds, addData, addMultiPlexDataBlock, addOutputDataBlock, changedThreading, clearOldData, createAnnotations, destroyProcess, dumpBufferStatus, flushDataBlockBuffers, getAncestorDataBlock, getAnnotation, getChainPosition, getCompatibleDataUnits, getCpuPercent, getFrequencyRange, getLastSourceNotificationObject, getLastSourceNotificationType, getMuiltiplexDataBlock, getNumAnnotations, getNumMuiltiplexDataBlocks, getNumOutputDataBlocks, getObserverName, getObserverObject, getOfflineData, getOfflineData, getOutputDataBlock, getOutputDataBlocks, getPamControlledUnit, getParentDataBlock, getParentDataBlocks, getParentProcess, getProcessCheck, getProcessName, getRawSourceDataBlock, getRawSourceDataBlock, getRequiredDataHistory, getSampleRate, getSourceDataBlock, getSourceProcess, hasOutputDatablock, isCanMultiThread, isExternalProcess, isMultiplex, makePamProcess, masterClockUpdate, newData, noteNewSettings, pamStart, pamStop, prepareProcessOK, processNewBuoyData, receiveSourceNotification, relMillisecondsToSamples, relSamplesToMilliseconds, removeAllDataBlocks, removeAllMultiPlexDataBlocks, removeMultiPlexDataBlock, removeObservable, removeOutputDatablock, resetDataBlocks, saveViewerData, setCanMultiThread, setExternalProcess, setMultiplex, setParentDataBlock, setParentDataBlock, setProcessCheck, setProcessName, setSampleRate, setupProcess, toString, updateData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

BeamFormerBaseProcess

public BeamFormerBaseProcess(BeamFormerBaseControl beamFormerBaseControl,
 boolean publishBeamOutput)

Method Details

findFFTDataBlock

public FFTDataBlock findFFTDataBlock()

Find the source of FFT data for the beam former. this may not be the same as the main data source if the main source is raw or detection data (overridden in BeamFormLocProcess).

Returns:

FFT source for the beam former.

prepareProcess

public void prepareProcess()

Description copied from class: PamProcess

Called for each process before any of them receive the PamStart command

Overrides:

prepareProcess in class PamProcess

getFftDataSource

public FFTDataBlock getFftDataSource()

Returns:

the fftDataSource

makeContinuousBeams

public void makeContinuousBeams(PamObservable o,
 PamDataUnit pamDataUnit)

findGroupProcess

public BeamGroupProcess findGroupProcess(int channelMap)

find a beam group process which matches a channel map.

Parameters:

channelMap - channel bitmap

Returns:

BeamgroupProcess or null if none match.

getBeamFormerOutput

public BeamFormerDataBlock getBeamFormerOutput()

Returns:

the beamFormerOutput

getBeamOGramOutput

public BeamOGramDataBlock getBeamOGramOutput()

Returns:

the beamOGramOutput

notifyModelChanged

public void notifyModelChanged(int changeType)

Overrides:

notifyModelChanged in class PamProcess

getGroupProcesses

public ArrayList<BeamGroupProcess> getGroupProcesses()

Returns:

the groupProcesses

getChannelGroupLUT

public int[] getChannelGroupLUT()

Returns:

the channelGroupLUT

frequencyToBin

public int frequencyToBin(double frequency)

Convert a frequency to the nearest bin. The range of the bin will be from 0 to fftLength()/2 inclusive, so when looping to a higher limit, loop to invalid input: '<' the top bin number!

Parameters:

frequency - Frequency in Hz

Returns:

FFT bin number.

frequencyToBin

public int[] frequencyToBin(double[] frequency)

Convert an array of frequency values to the nearest bins. The range of the bins will be from 0 to fftLength()/2 inclusive, so when looping to a higher limit, loop to invalid input: '<' the top bin number!

Parameters:

frequency - Frequencies in Hz

Returns:

FFT bin numbers.

getChannelsForSequenceMap

public int getChannelsForSequenceMap(int sequenceMap)

Given a sequenceMap, this function returns all of the channels that are associated with it.

Parameters:

sequenceMap -

Returns: