Package de.labAlive.system.siso.fir

Class RectBandpass

java.lang.Object

de.labAlive.core.wiringComponent.WiringComponent

de.labAlive.core.abstractSystem.System

de.labAlive.core.abstractSystem.siso.SISOSystem2Impl

de.labAlive.baseSystem.SISOSystem

de.labAlive.baseSystem.AnalogSISOSystem

de.labAlive.system.siso.fir.FIR

de.labAlive.system.siso.fir.NormalizedFIR

de.labAlive.system.siso.fir.RectPass

de.labAlive.system.siso.fir.RectBandpass

All Implemented Interfaces:

de.labAlive.system.System

public class RectBandpass
extends RectPass

Ideal bandpass filter.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	RectBandpass.InitCoefficientsMethod

Field Summary

Fields inherited from class de.labAlive.system.siso.fir.NormalizedFIR

CUTOFF_FREQUENCY_DEFAULT, TIME_DEFAULT

Fields inherited from class de.labAlive.system.siso.fir.FIR

h, systemMeasures

Constructor Summary

Constructors

Constructor	Description
RectBandpass(double lowerCutoffFrequency, double upperCutoffFrequency)

Method Summary

Modifier and Type	Method	Description
static double[]	getCoeff_CarrierMeth(int coefficients, double fl, double fh, double ta)	Generates the coefficients of a bandpass filter.
static double[]	getCoefficients(int coefficients, double fl, double fh, double ta)	Generates the coefficients of a bandpass filter.
double	getLowerCutoffFrequency()
void	notifyBeforeParameterChange(de.labAlive.measure.Parameters changedParameters)	Parameters have changed (a copy of the systems parameters has been changed by the user).

Methods inherited from class de.labAlive.system.siso.fir.RectPass

createRollOffFactorProperty, cutoffFrequency, frequency, length, rollOff, setWindow, time

Methods inherited from class de.labAlive.system.siso.fir.NormalizedFIR

buildFir, normalize, normalizeLowpassSpectrumFactor, scaleCoefficients, setNormalizedImpulseResponseEnergy

Methods inherited from class de.labAlive.system.siso.fir.FIR

build, hedgeNumberOfCoefficients, hedgeNumberOfCoefficients, notifyPropertyChanged

Methods inherited from class de.labAlive.core.abstractSystem.System

connect, doubleAttenuationProperty, doubleAttenuationProperty, doubleDbProperty, doubleDbProperty, doubleProperty, doubleProperty, getImplementation, getInWire, getOutWire, getOutWire, hide, hideSystemOnly, label, name, rebuild, set, show

Methods inherited from class de.labAlive.core.wiringComponent.WiringComponent

addSymbol, getMainParameters, getName, longName, name, name, setStepInterceptor, setSymbol, setSymbolResolver, show, show, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.labAlive.system.System

addSymbol, longName, name, setStepInterceptor, setSymbol, show, show

Constructor Details

RectBandpass

public RectBandpass(double lowerCutoffFrequency,
 double upperCutoffFrequency)

Parameters:

lowerCutoffFrequency - lower cutoff frequency - 6 db (Grenzfrequenz mit H(f) = 0.5)

upperCutoffFrequency - upper cutoff frequency - 6 db (Grenzfrequenz mit H(f) = 0.5)

Method Details

getLowerCutoffFrequency

public double getLowerCutoffFrequency()

getCoeff_CarrierMeth

public static double[] getCoeff_CarrierMeth(int coefficients,
 double fl,
 double fh,
 double ta)

Generates the coefficients of a bandpass filter. Base band lowpass - carrier method.

getCoefficients

public static double[] getCoefficients(int coefficients,
 double fl,
 double fh,
 double ta)

Generates the coefficients of a bandpass filter. Upper lowpass minus lower lowpass method.

notifyBeforeParameterChange

public void notifyBeforeParameterChange(de.labAlive.measure.Parameters changedParameters)

Parameters have changed (a copy of the systems parameters has been changed by the user). System is allowed to check parameters, change parameters and feed accepted parameter values back to parameters. PropertyWindow displays the updated parameter values.

Overrides:

notifyBeforeParameterChange in class RectPass