Analyzes a signal with different methods in time domain.
Applies the operation selected by Transform to the Input signal and places the result in Self.Data. Transform = ttAutoCorr computes the one-sided autocorrelation r[k] for lags k = 0 ... CorrTaps1-1, scaled by AutoCorrType: normal r[k]=sum_n x[n] x[n+k] (so r[0] equals the signal energy sum_n x[n]^2), biased r[k]/N, unbiased r[k]/(N−k). ttCrossCorr computes the raw cross-correlation of the two Inputs, Data[n] = sum_k x_1[k] x_2[k+n], n = 0 ... CorrTaps1-1, whose peak lag equals the delay between the two signals. ttDct / ttInverseDct apply the orthonormal DCT-II and its inverse, satisfying IDCT(DCT(x)) = x. ttRealCepstrum returns the real cepstrum c = F^(-1)bigl(ln| F(x)|bigr) (a windowed, half-length estimate) in which an echo of delay D produces a rahmonic peak whose quefrency tracks D; ttCplxCepstrum keeps the unwrapped phase. Integration further integrates (trapezoidal, inOnce/inTwice) or differentiates (central difference (x[i+2]-x[i])/(2 Delta t), diffOnce/diffTwice) the signal using the sample interval Delta t = 1/F_s. The resulting signal is always placed in Self.Data.
| Name | Type | Description |
|---|
| Active | bool | Set active to false to suppress the propagation of the Pull request and the subsequent call to the Update method. |
| AutoCorrType | TAutoCorrType | Select the auto-correlation type. |
| BandWidth | double | Return the bandwidth of the signal. |
| BandwidthH | double | Returns the upper bandwidth edge of the signal. |
| BandwidthL | double | Returns the lower bandwidth edge of the signal. |
| BlockAssign | bool | Block streaming of specific properties when storing only a "template". |
| ChannelCount | int | Get or set the number of channels multiplexed in the data property. |
| Complex | bool | Set this property to true, to request computation using complex numbers. |
| Continuous | bool | If True, the component will pass on the udpate request to the connected component. |
| CorrTaps1 | int | Select number of taps for auto-correlation and cross-correlation. |
| CorrTaps2 | int | Select number of taps for cross-correlation. |
| Data | TVec* | Stores the result of the processing. |
| Dt | double | Time between two consecutive samples. |
| EditorActive | bool | Returns True, if the component editor is displayed. |
| ExpWindow | double | Final value of the exponential window. |
| FloatPrecision | TMtxFloatPrecision | Set this property to request computation in 32bit/64bit precision with real/complex numbers. |
| FloatPrecisionLock | bool | Set this property to true to lock changes to FloatPrecision property. |
| HzRes | double | Frequency resolution obtained, if an FFT algorithm would be run on the data. |
| Input | TSignal* | |
| Inputs | TSignalCollection* | |
| Integration | TIntegration | Specifies, if the signal should be integrated or differentiated. |
| IsDouble | bool | Set this property to false, to request computation in 32bit floating point precision, 64bit, if true. |
| ItemNumber | int | Number to label the object when it is an item in the List. |
| Length | int | Get or set the length of the signal in samples. |
| Marks | TMarkList* | Stores the time stamps and amplitude of selected samples. |
| MaxAmplt | double | Stores the maximum amplitude of the signal found by the MinMax method. |
| MaxX | double | Use the MaxX property to store the time stamp (in seconds) of the right most sample. |
| MinAmplt | double | Stores the minimum amplitude of the signal found by the MinMax method. |
| MinX | double | Use the MinX property to store the time stamp of the left-most sample. |
| MultiChannel | bool | Set MultiChannel to True, if Inputs property will be published, and Input property will remain hidden. |
| Name | DewString | |
| OnAfterUpdate | tNotifyEvent | The event is triggered after the call to the Update method. |
| OnBeforeUpdate | tNotifyEvent | The event is triggered just before the call to the Update method. |
| OnDisplayUpdate | tNotifyEvent | The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables. |
| OnGetInput | tNotifyEvent | If the Input property is not assigned, the component will call OnGetInput. |
| OnNotifyUpdate | tNotifyEvent | The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method. |
| OnParameterUpdate | tNotifyEvent | 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". |
| PipeDirty | bool | |
| PipeState | TPipeState | Returns the state of the pipe after the last update. |
| Reference | TReferenceList* | Stores a list of components that have to be notified, when this component is destroyed. |
| RemoveDC | bool | If True, subtract the average value from the signal. This is not usuable for streaming. |
| Report | TSignalReport* | Generates a report/description of the signal. |
| Rotation | int | Defines the rotation in number of samples within the current buffer. |
| SamplingFrequency | double | Defines the sampling frequency of the signal. |
| SamplingTime | double | The length of the signal in seconds. |
| ScaleFactor | double | The signal will be scaled with the ScaleFactor. |
| SidelobeAtt | double | Defines sidelobe attenuation for the Kaiser and Cheybshev window. |
| SuspendNotifyUpdate | bool | Set this property to True, to prevent calling OnNotifyUpdate from the Update Method. |
| Transform | TTimeTransform | Selects the type of the transform to apply to the signal. |
| UsesInputs | bool | Set it to True to indicate, that valid signals will be connected to the Input or Inputs properties. |
| Window | TSignalWindowType | Defines the window to applied to the signal. |