Performs element-wise alignment of waveforms and returns the aligned waveforms. The data types you wire to the waveform inputs determine the polymorphic instance to use.

Note

The time and component values of the result are the same as those of waveform A in. If the dt values are not equal, error out returns a warning and waveform A out and waveform B out are empty.


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Inputs/Outputs

  • cbool.png reset —

    reset resets the phase to the phase control value and the time stamp to zero. The default is FALSE.

  • cmsdt.png waveform A in —

    waveform A in is a waveform to align.

  • cmsdt.png waveform B in —

    waveform B in is a waveform to align.

  • cu16.png interpolation mode —

    interpolation mode specifies the interpolation method.

    0Coerce—Each output sample is set equal to the input sample value that is closest to it in time.
    1Linear (default)—Each output sample value is a linear interpolation between the two input samples that are closest to it in time.
    2Spline—Uses the spline interpolation algorithm to compute the resampled values.
    3FIR filter—Uses a finite impulse response (FIR) filtering algorithm to compute the resampled values.
  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • cnclst.png FIR filter specifications —

    FIR filter specifications specifies the minimum values this VI needs to specify the FIR filter.

  • cdbl.png alias rejection (dB) —

    alias rejection (dB) specifies the minimum attenuation level of signal components aliased after any resampling operation. The default is 120.

  • cdbl.png normalized bandwidth —

    normalized bandwidth specifies the fraction of the new sampling rate that is not attenuated. The default is 0.4536.

  • cbool.png interpolation —

    interpolation specifies whether interpolation is performed. The default is TRUE.

  • imsdt.png waveform A out —

    waveform A out is the waveform that results from aligning waveform A in and waveform B in.

  • imsdt.png waveform B out —

    waveform B out is the waveform that results from aligning waveform B in and waveform A in.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.

    • Examples

    Refer to the following example files included with LabVIEW.

    • labview\examples\Signal Processing\Waveform Conditioning\Align and Subtract two Waveforms (continuous).vi