public class VariableFIR extends FIR
If the decimation parameter is unity (the default), then the blockSize parameter specifies the number of inputs of the filter that are processed per coefficient set provided on the newTaps input. Otherwise, if decimation is greater than unity, then the number of tokens consumed is the product of decimation and blockSize, and all these inputs are processed using the filter coefficients provided on newTaps. In all other respects, the behavior of this actor is the same as that of the base class.
Note that when a new set of filter coefficients arrives on newTaps, if the new set has more coefficients than the old set, then a transient will occur that may be unexpected. The delay line containing previously consumed data has to be increased in length to match the number of new coefficients. However, the extended part of the delay line cannot possibly be initialized with previously consumed data because that data has not been saved. Unless this actor were to save all previously consumed data (which would be hopelessly inefficient), there is no way it can be assured of always having the requisite data. Thus, the actor initializes the extended part of the delay line with zeros of the same type as the input data.
TokenEntity.ContainedObjectsIterator| Modifier and Type | Field and Description |
|---|---|
Parameter |
blockSize
The number of inputs that use each each coefficient set is the
value of this parameter multiplied by the value of the
decimation parameter.
|
TypedIOPort |
newTaps
The input for new tap values.
|
_data, _decimationPhaseValue, _decimationValue, _interpolationValue, _mostRecent, _phaseLength, _reinitializeNeeded, _taps, _zero, decimation, decimationPhase, interpolation, tapsinput, input_tokenConsumptionRate, output, output_tokenInitProduction, output_tokenProductionRate_typesValid_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKSCOMPLETED, NOT_READY, STOP_ITERATING| Constructor and Description |
|---|
VariableFIR(CompositeEntity container,
java.lang.String name)
Construct an actor with the given container and name.
|
| Modifier and Type | Method and Description |
|---|---|
void |
attributeChanged(Attribute attribute)
Set a flag that causes recalculation of various local variables
that are used in execution on the next invocation of fire().
|
java.lang.Object |
clone(Workspace workspace)
Clone the actor into the specified workspace.
|
void |
fire()
Consume the inputs and produce the outputs of the FIR filter.
|
boolean |
prefire()
Return false if the input does not have enough tokens to fire.
|
_customTypeConstraints, _initializeTaps, _reinitialize, initialize_containedTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName_addPort, _description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspaceequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitcreateReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortListisFireFunctional, isStrict, iterate, postfire, stop, stopFire, terminateaddInitializable, preinitialize, removeInitializable, wrapupdescription, getContainer, getDisplayName, getFullName, getName, getName, setNamegetDerivedLevel, getDerivedList, propagateValuepublic Parameter blockSize
public TypedIOPort newTaps
public VariableFIR(CompositeEntity container, java.lang.String name) throws NameDuplicationException, IllegalActionException
container - The container.name - The name of this actor.IllegalActionException - If the actor cannot be contained
by the proposed container.NameDuplicationException - If the container already has an
actor with this name.public void attributeChanged(Attribute attribute) throws IllegalActionException
attributeChanged in class FIRattribute - The attribute that changed.IllegalActionException - If the attribute contains
an invalid value or if the super method throws it.public java.lang.Object clone(Workspace workspace) throws java.lang.CloneNotSupportedException
clone in class FIRworkspace - The workspace for the new object.java.lang.CloneNotSupportedException - If a derived class contains
an attribute that cannot be cloned.NamedObj.exportMoML(Writer, int, String),
NamedObj.setDeferringChangeRequests(boolean)public void fire()
throws IllegalActionException
fire in interface Executablefire in class FIRIllegalActionException - If parameter values are invalid,
or if there is no director, or if runtime type conflicts occur.public boolean prefire()
throws IllegalActionException
prefire in interface Executableprefire in class FIRIllegalActionException - If the superclass throws it.