Name 

Description 

 

Add 

Add amplitude and phase of the ASpectrum to the current spectrum. 

 

AmpltEst 

This is the overview for the AmpltEst method overload. 

 

AmpltSpectrum 

Compute amplitude spectrum from X. 

 

BandFlip 

Flip the frequency spectrum on the frequency axis. 

 

ConvergeToMaximum 

Searches for the closes maximum of the amplitude spectrum. Returns the frequency as the result. 

 

Copy 

Copy ASpectrum to the calling spectrum. 

 

Destroy 

This is Destroy, a member of class TSpectrum. 

 

Differentiate 

Differentiate the signal in the frequency domain. 

 

Divide 

Divide the calling the spectrum with ASpectrum. 

 

FilterPeak 

Filter the peak at Marks position Index from the signal and recalculate the spectrum. 

 

Integrate 

Integrate the signal in the frequency domain. 

 

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. 

 

PeakApproximate 

Return the peak closest to the Freq frequency. 

 

PhaseEst 

This is the overview for the PhaseEst method overload. 

 

PhaseSpectrum 

Compute phase spectrum from X. 

 

PowerSpectrum 

Compute power spectrum from X. 

 

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. 

 

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. 

 

ValuesToStrings 

Convert values to strings.