TBiSpectrumAnalyzer Members

The following tables list the members exposed by TBiSpectrumAnalyzer.

	Name	Description
	Add	Add amplitude and phase of the ASpectrum to the current spectrum.
	AmpltEst	This is the overview for the AmpltEst method overload.
	AmpltEst	This is the overview for the AmpltEst method overload.
	AmpltLogEst	This is the overview for the AmpltLogEst method overload.
	AmpltSpectrum	Compute amplitude spectrum from X.
	BandFlip	Flip the frequency spectrum on the frequency axis.
	ComplexEst	This is the overview for the ComplexEst method overload.
	ComputeSpectrum	Compute the frequency spectrum where the Num is the numerator and Den is the denominator of the transfer function.
	ConvergeToMaximum	This is the overview for the ConvergeToMaximum method overload.
	Copy	Copy ASpectrum to the calling spectrum.
	Create	This is Create, a member of class TCustomSpectrumAnalyzer.
	Differentiate	Differentiate the signal in the frequency domain.
	Divide	Divide the calling the spectrum with ASpectrum.
	FilterPeak	Filter the peak defined with a TMarkRecord record stored at position Index within Marks list from Input.Data.
	FilterPeak	Filter the peak at Marks position Index from the signal and recalculate the spectrum.
	FreqToFreqIndex	Computes range checked array indexes in the spectrum from frequency values.
	InputsDirty	If all Inputs[i] are dirty the function returns true.
	Integrate	Integrate the signal in the frequency domain.
	IntegrateSpectrum	This is IntegrateSpectrum, a member of class TCustomSpectrumAnalyzer.
	InternalPull	When called, the method will pass Update requests recursively to all connected objects.
	Invalidate	Notifies all connected components that this component has fresh data.
	IsNumericalInterpolationSupported	This is IsNumericalInterpolationSupported, a member of class TSpectrumAnalyzer.
	IsNumericalInterpolationSupported	This is IsNumericalInterpolationSupported, a member of class TSpectrum.
	LogAmplt	Compute the logarithm of the amplitude spectrum and convert to dB.
	MarksToStrings	Convert marks to strings.
	MinMax	Calls MinMaxAmplt and MinMaxPhase.
	MinMaxAmplt	Find minimum and maximum value of the Amplt spectrum.
	MinMaxPhase	Find minimum and maximum value of the Phase spectrum.
	Mul	Multiply the calling the spectrum with ASpectrum.
	NF	Calculates the average of the noise.
	ParamUpdate	The method can be assigned to some other component even handler, as a notification that a parameter has changed and that Self should consider a recalculation.
	PeakApproximate	Return the peak closest to the Freq frequency.
	PeakApproximate	This is the overview for the PeakApproximate method overload.
	PhaseEst	This is the overview for the PhaseEst method overload.
	PhaseEst	This is the overview for the PhaseEst method overload.
	PhaseSpectrum	Compute phase spectrum from X.
	PipeReset	Recursively processes all connected components backward and calls Reset method.
	PowerSpectrum	Compute power spectrum from X.
	Process	Compute the frequency spectrum where the SrcNum is the numerator and SrcDen is the denominator of the transfer function.
	Pull	Request recalculation of the entire chain of all connected components.
	PullUntilEnd	Calls Pull until pipeEnd is returned.
	Reset	Resets averaging and frees internal memory.
	ResetAveraging	Reset the frequency spectrum averaging.
	RMS	Returns the RMS of the spectrum.
	RMSSpectrum	Compute RMS spectrum from X.
	Scale	Scale the calling spectrum with Factor.
	SetZero	Initialize spectrum to zero.
	SFDR	Spurious-free-dynamic-range computes the ratio of the largest marked peak towards the second largest.
	SINAD	Signal-to-noise-and-distortion calculates the the ratio of the maximum mark towards the rest (noise).
	Size	Assign Length, Complex and SamplingFrequency properties.
	SNR	Calculates the signal-to-noise ratio.
	Spectrum	Compute the spectrum from Input.Data according to the state of the component and place the result in Dst.
	Sqr	Square the Amplt and Phase of the ASpectrum and copy it to self.
	Subtract	Subtract ASpectrum from the calling spectrum.
	THD	Returns the ratio of RMS of the marked peaks, excluding the first, towards the first marked peak and returns the result in [%].
	THDN	The total-harmonic-distortion-and-noise computes the sum of sqares of the rest towards the maximum marked peak.
	Update	Request recalculation of the data and place the result in Self.
	UpdateLogarithmic	Call the method after changing the Logarithmic property.
	UpdateNotify	Call this method only, if SuspendNotifyUpdate is True.
	UpdateSpectrum	Decode data from the bispectrum matrix and place it in Self.Amplt.
	UpdateSpectrumStats	If Stats.Recursive was False, calling this method will compute the averaged spectrum and associated statistics.
	ValuesToStrings	Convert values to strings.

Public Properties

	Name	Description
	ActualZeroPadding	Ready only. Returns the ratio between the original signal length and the length of the analyzed signal padded with zeros.
	Averages	Used to store the number of averages made.
	BandwidthH	Returns the upper bandwidth edge of the signal.
	BandwidthL	Returns the lower bandwidth edge of the signal.
	ComplexSpectrum	After the first call to Update method, this property returns a pointer to the scaled complex spectrum.
	ConjExtend	If True, the conjugate symmetric part of the frequency spectrum is to be computed.
	ConjFlip	If True, the conjugate symmetric part of the frequency spectrum will be placed in 0.5..1.0 Fs (as returned by the FFT), and not between -0.5..0.0 Fs.
	Descriptor	This is Descriptor, a member of class TStaticSpectrumAnalyzer.
	Input	Must be "Hidden" unless it is published
	Input	Must be "Hidden" unless it is published
	Inputs	Connector property to obtain a pointer to a list of TSignal components holding the data to be processed.
	IsSpectrumAnalyzer	Returns true, if the descendant class is derived from TSpectrumAnalyzer.
	ItemNumber	Number to label the object when it is an item in the List.
	LdBSpan	This is LdBSpan, a member of class TCustomSpectrumAnalyzer.
	LogMaxAmplt	This is LogMaxAmplt, a member of class TSpectrumAnalyzer.
	Marks	Stores the frequency, amplitude and phase of selected frequency bins.
	MaxAmplt	Stores the maximum value of the Amplt spectrum found by the MinMaxAmplt method.
	MaxFreqIndex	Holds the index at which the maximum amplitude was found by the MinMaxAmplt method.
	MaxPhase	Stores the maximum value of the Phase spectrum found by the MinMaxPhase method.
	MinAmplt	Stores the minimum value of the Amplt spectrum found by the MinMaxAmplt method.
	MinPhase	Stores the minimum value of the Phase spectrum found by the MinMaxPhase method.
	PipeState	Returns the state of the pipe after the last update.
	SpectrumScale	The scaling factor applied to the frequency spectrum.
	SupportComplexSpectra	This is SupportComplexSpectra, a member of class TSpectrumAnalyzer.
	SuspendNotifyUpdate	Set this property to True, to prevent calling OnNotifyUpdate from the Update Method.
	UsesInputs	Set it to True to indicate, that valid signals will be connected to the Input or Inputs properties.

Published Events

	Name	Description
	OnGetSpectrum	Assign the event returning the custom computed frequency spectrum to be used for computation of third order spectrum (bispectrum).

Published Properties

	Name	Description
	Active	Set active to false to suppress the propagation of the Pull request and the subsequent call to the Update method.
	Amplt	Stores the amplitude of the spectrum.
	ArOrder	Defines the order for the autogressive spectral estimators.
	Bands	Holds the parameters for the frequency bands.
	BandWidth	Returns the bandwidth of the spectrum in [Hz].
	BiAnalyzer	Parameters required by the higher order spectral analysis.
	Complex	Set this property to true, to request computation using complex numbers.
	ConjExtend	If True, the conjugate symmetric part of the frequency spectrum is to be computed.
	ConjFlip	If True, the conjugate symmetric part of the frequency spectrum will be placed in 0.5..1.0 Fs (as returned by the FFT), and not between -0.5..0.0 Fs.
	Continuous	If True, the component will pass on the udpate request to the connected component.
	CrossSpectral	if true, calculate cross spectrum and not transfer function
	CZT	Holds Chirp Z-transform configuration.
	DCDump	If True, the DC component will be removed from the signal prior to the transform to the frequency domain.
	Dt	Returns the distance in seconds between two consecutive samples of the signal on which the frequency spectrum is based.
	ExpWindow	The parameter for the exponential windowing function.
	FloatPrecision	may not have default to allow switching of default precision
	FloatPrecisionLock	Set this property to true to lock changes to FloatPrecision property.
	Harmonics	Defines number of harmonics to be used when calculating statistical parameters from the amplitude spectrum.
	HzRes	Returns the frequency resolution in Hz.
	Input	Must be "Hidden" unless it is published
	Integration	Define the integration/differenation of the frequency spectrum.
	IsDouble	may not have default to allow switching of default precision
	Length	Defines the length of the spectrum.
	Logarithmic	Set it to True, to obtain the logarithm of the spectrum in dB.
	LogBase	Defines the base of the logarithmic spectrum.
	LogScale	Defines the scaling of the logarithmic spectrum.
	LogSpan	Defines the span of the logarithmic spectrum in dB.
	LogType	Specify how to apply the logarithm to the spectrum.
	MainlobeWidth	Defines the width of the main lobe. Each frequency component in the frequency spectrum should theoretically be infinitely thin.
	Method	Defines the method to be used for frequency spectrum estimation.
	OnAfterAverage	Event triggered just after the average has been applied.
	OnAfterComplexSpectrum	Event triggered just after complex spectrum has been computed, but before averaging in the complex domain.
	OnAfterUpdate	The event is triggered after the call to the Update method.
	OnBandsUpdate	If assigned, this event will be called instead of a call to Bands.Update method.
	OnBeforeAverage	Event triggered just before the average is applied.
	OnBeforeSpectrumType	Event triggered just before spectrum type is aplied, but after averaging in the complex domain.
	OnBeforeUpdate	The event is triggered just before the call to the Update method.
	OnDisplayUpdate	The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables.
	OnGetInput	If the Input property is not assigned, the component will call OnGetInput.
	OnNotifyUpdate	The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method.
	OnParameterUpdate	The event is triggered when ParamUpdate method is called. The ParamUpdate method is usually called by component editors when a value was changed by the user and the editor was "Live".
	OnPeaksUpdate	If assigned, this event will be called instead of a call to Peaks.Update method.
	OnUpdateSpectrum	Called from the UpdateSpectrum routine. The event is called after the spectrum data is updated and before the chart is updated.
	Peaks	Pointer to the component that manages peak analysis.
	Phase	Stores the phase of the spectrum.
	PhaseMode	This property determines how to handle the phase of the frequency spectrum.
	PhaseRange	Specify the range of the phase spectrum.
	PhaseUnits	Defines the units of phase. (radian, degrees).
	Report	Holds the parameters needed to generate a spectrum analysis report. Requires that the descriptor property is properly filled up.
	Rotation	Before the frequency analysis, the signal can be circularly rotated by a specified number of samples. Rotation defines the number of samples.
	RunningPhase	Defines how to remove the constant (running) phase from the phase spectrum.
	SamplingFrequency	Defines the sampling frequency of the signal on which the frequency spectrum is based.
	SamplingTime	Defines the length of the signal on which the frequency spectrum is based in seconds.
	ScaleFactor	Frequency spectrum will be scaled by a scale factor.
	SidelobeAtt	Specifies the attenuation of the main sidelobe in dB. This parameter applies only, if you use the Kaiser or Chebyshev window.
	SpectrumType	Specifies the spectrum type to be computed.
	Stats	Defines the parameters for the averaging and statistical analysis.
	UnwrapPhase	If True, the phase of the phase spectrum will be "unwrapped".
	Window	Specifies the window type to be used. Windows decrease spectral leakage, but also decrease spectral resolution.
	ZeroPadding	Defines the level of zero padding of the source signal.

Links

TBiSpectrumAnalyzer Class, Legend, Public Methods, Public Properties, Published Events, Published Properties

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