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Home > Support > NI Product Manuals > LabVIEW Communications System Design Suite 1.0 Manual

Calculates the full-scale power adjustment and the peak-to-average power ratio (PAPR).

In the NI-RFSG peak-power mode, after scaling the waveform to a value between +1 and -1, the waveform power may not be at the desired level. You can use the full scale adjustment parameter to compensate for the loss in power and the PAPR parameter to change the average power of the modulated waveform to the peak power specifically required for streaming mode.


The input complex waveform must be scaled by the worst case scaling factor generated by MT Calculate Worst Case Scaling Factor (Modulation and Resample).


input complex waveform

The modulated complex baseband waveform data.



Trigger (start) time of the Y array.

Default: 0.0



Time interval between data points in the Y array.

Default: 1.0



The complex-valued signal-only baseband modulated waveform. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively.


waveform scaling factor

Scaling factor used on the waveform to position it between +1 and -1. Typically, you have to wire this parameter from the waveform scaling factor parameter of MT Calculate Worst Case Scaling Factor.

This node uses this parameter to scale the input complex waveform.


error in

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

Default: no error



A Boolean that determines whether to calculate the full scale adjustment and PAPR parameters. On first call, reset? is set to TRUE by default.

TRUE Calculates the full scale adjustment and PAPR parameters.
FALSE Continues without calculating the full scale adjustment and PAPR parameters.

Default: TRUE


Full Scale Adjustment

The number by which the NI-RFSG power level must be adjusted.



PAPR of the scaled input complex waveform, where the scaling factor is derived from MT Calculate Worst Case Scaling Factor.


error out

Error information. The node produces this output according to standard error behavior.