Dew Signal for .NET
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The following tables list the members exposed by TSpectrum.
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Name |
Description |
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The event is triggered after the call to the Update method. | |
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The event is triggered just before the call to the Update method. | |
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The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables. | |
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If the Input property is not assigned, the component will call OnGetInput. | |
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The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method. | |
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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". |
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Name |
Description |
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Add amplitude and phase of the ASpectrum to the current spectrum. | |
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This is the overview for the AmpltEst method overload. | |
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Compute amplitude spectrum from X. | |
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This is Assign, a member of class TAnalysis. | |
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Flip the frequency spectrum on the frequency axis. | |
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Searches for the closes maximum of the amplitude spectrum. Returns the frequency as the result. | |
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Copy ASpectrum to the calling spectrum. | |
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This is Destroy, a member of class TSpectrum. | |
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This is DetectChannelCount, a member of class TAnalysis. | |
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Differentiate the signal in the frequency domain. | |
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Divide the calling the spectrum with ASpectrum. | |
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Filter the peak at Marks position Index from the signal and recalculate the spectrum. | |
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If all Inputs[i] are dirty the function returns true. | |
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Integrate the signal in the frequency domain. | |
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When called, the method will pass Update requests recursively to all connected objects. | |
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Notifies all connected components that this component has fresh data. | |
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Compute the logarithm of the amplitude spectrum and convert to dB. | |
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Convert marks to strings. | |
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Calls MinMaxAmplt and MinMaxPhase. | |
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Find minimum and maximum value of the Amplt spectrum. | |
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Find minimum and maximum value of the Phase spectrum. | |
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Multiply the calling the spectrum with ASpectrum. | |
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Calculates the average of the noise. | |
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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. | |
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Return the peak closest to the Freq frequency. | |
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This is the overview for the PhaseEst method overload. | |
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Compute phase spectrum from X. | |
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Recursively processes all connected components backward and calls Reset method. | |
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Compute power spectrum from X. | |
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Request recalculation of the entire chain of all connected components. | |
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Calls Pull until pipeEnd is returned. | |
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This is Reset, a member of class TAnalysis. | |
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Returns the RMS of the spectrum. | |
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Compute RMS spectrum from X. | |
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Scale the calling spectrum with Factor. | |
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Initialize spectrum to zero. | |
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Spurious-free-dynamic-range computes the ratio of the largest marked peak towards the second largest. | |
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Signal-to-noise-and-distortion calculates the the ratio of the maximum mark towards the rest (noise). | |
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Calculates the signal-to-noise ratio. | |
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Subtract ASpectrum from the calling spectrum. | |
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Returns the ratio of RMS of the marked peaks, excluding the first, towards the first marked peak and returns the result in [%]. | |
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The total-harmonic-distortion-and-noise computes the sum of sqares of the rest towards the maximum marked peak. | |
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This is the overview for the TSpectrum constructor overload. | |
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Request recalculation of the data and place the result in Self. | |
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Call this method only, if SuspendNotifyUpdate is True. | |
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Convert values to strings. |
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Name |
Description |
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Stores the amplitude of the spectrum. | |
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Used to store the number of averages made. | |
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Returns the bandwidth of the spectrum in [Hz]. | |
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Returns the upper bandwidth edge of the signal. | |
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Returns the lower bandwidth edge of the signal. | |
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Set this property to true, to request computation using complex numbers. | |
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If True, the conjugate symmetric part of the frequency spectrum is to be computed. | |
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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. | |
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If True, the component will pass on the udpate request to the connected component. | |
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Returns the distance in seconds between two consecutive samples of the signal on which the frequency spectrum is based. | |
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Set this property to request computation in 32bit/64bit precision with real/complex numbers. | |
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Set this property to true to lock changes to FloatPrecision property. | |
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Defines number of harmonics to be used when calculating statistical parameters from the amplitude spectrum. | |
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Returns the frequency resolution in Hz. | |
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Connector property to obtain a pointer to the TSignal component holding the data to be processed. | |
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Set this property to false, to request computation in 32bit floating point precision, 64bit, if true. | |
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Number to label the object when it is an item in the List. | |
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Defines the length of the spectrum. | |
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Defines the width of the main lobe. Each frequency component in the frequency spectrum should theoretically be infinitely thin. | |
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Stores the frequency, amplitude and phase of selected frequency bins. | |
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Stores the maximum value of the Amplt spectrum found by the MinMaxAmplt method. | |
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Holds the index at which the maximum amplitude was found by the MinMaxAmplt method. | |
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Stores the maximum value of the Phase spectrum found by the MinMaxPhase method. | |
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Stores the minimum value of the Amplt spectrum found by the MinMaxAmplt method. | |
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Stores the minimum value of the Phase spectrum found by the MinMaxPhase method. | |
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The event is triggered after the call to the Update method. | |
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The event is triggered just before the call to the Update method. | |
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The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables. | |
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If the Input property is not assigned, the component will call OnGetInput. | |
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The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method. | |
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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". | |
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Stores the phase of the spectrum. | |
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This property determines how to handle the phase of the frequency spectrum. | |
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Specify the range of the phase spectrum. | |
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Defines the units of phase. (radian, degrees). | |
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Returns the state of the pipe after the last update. | |
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Defines the sampling frequency of the signal on which the frequency spectrum is based. | |
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Defines the length of the signal on which the frequency spectrum is based in seconds. | |
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Set this property to True, to prevent calling OnNotifyUpdate from the Update Method. | |
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Set it to True to indicate, that valid signals will be connected to the Input or Inputs properties. | |
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Defines the level of zero padding of the source signal. |
Copyright (c) 1999-2022 by Dew Research. All rights reserved.
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