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.  

 

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 

The method is overriden to provide support for the CrossAnalyzer.Recursive property.  

 

UpdateLogarithmic 

Call the method after changing the Logarithmic property.  

 

UpdateNotify 

Call this method only, if SuspendNotifyUpdate is True. 

 

UpdateSpectrum 

Copy the spectrum specified by CrossAnalyzer.Transform property to Self.Amplt. and also performs peak and frequency band analysis, if specified.  

 

UpdateSpectrumStats 

If Stats.Recursive was False, calling this method will compute the averaged spectrum and associated statistics.  

 

ValuesToStrings 

Convert values to strings.