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]. 

 

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. 

 

CrossAnalyzer 

Holder for all the storage and settings required by the cross spectral analysis.  

 

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 

This event is called from the UpdateSpectrum routine. The event is called after the spectrum data is updated and before the chart is updated.  

 

Output 

Assign "output" of the system being analyzed.  

 

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.