Scales the input waveform to DUT average input power and then predistorts using the DPD polynomial or the lookup table. To scale the waveform correctly, specify if the idle duration is present in the waveform.


icon

Inputs/Outputs

  • cstr.png Selector String —

    Selector String specifies a selector string comprising of the signal name and result name. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. The default value is "" (empty string).

    Example:

    "signal::sig1"

    "result::r1"

    "signal::sig1/result::r1"

    You can use the RFmxSpecAn Build Signal String VI to build the selector string.

  • cgenclassrntag.png Instrument Handle In —

    Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI.

  • ccclst.png Waveform In —

    Waveform In specifies the complex baseband equivalent of the RF signal on which to apply digital predistortion.

  • cdbl.png x0 —

    x0 specifies the start time, in seconds.

  • cdbl.png dx —

    dx specifies the sample duration, in seconds.

  • c1dcsg.png y —

    y specifies the complex baseband samples, in volts.

  • ci32.png Idle Duration Present —

    Idle Duration Present specifies whether the waveform contains an idle duration. The default value is False.

    False (0)

    The reference waveform does not contain idle duration.
    True (1)

    The reference waveform contains idle duration.
  • cdbl.png Measurement Timeout (s) —

    Timeout specifies the timeout, in seconds, for fetching the specified measurement. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the VI waits until the measurement is complete. The default value is 10.

    Note This parameter is ignored if you set the DPD Apply DPD Config Input property to User.
  • cerrcodeclst.png error in (no error) —

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

  • igenclassrntag.png Instrument Handle Out —

    Instrument Handle Out passes a reference of your RFmx session to the next VI.

  • icclst.png Waveform Out —

    Waveform Out returns the complex baseband equivalent of the RF signal obtained after applying digital predistortion on the input waveform.

  • idbl.png x0 —

    x0 returns the start time, in seconds.

  • idbl.png dx —

    dx returns the sample duration, in seconds.

  • i1dcsg.png y —

    y returns the complex baseband samples, in volts.

  • idbl.png PAPR (dB) —

    PAPR returns the peak-to-average power ratio of the waveform obtained after applying digital predistortion. This value is expressed in dB.

  • idbl.png Power Offset (dB) —

    Power Offset returns the change in the average power in the waveform due to applying digital predistortion. This value is expressed in dB.

  • ierrcodeclst.png error out —

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