Power Measurements

Averaging helps in improving the accuracy of power measurements of stationary signals. The spectrum is averaged over multiple acquisitions based on the averaging count. This helps in reducing noise in the acquired signal based on the averaging type.

The following table lists the supported averaging types for traces.

Type Formula Application
RMS

where,

P = averaged power trace in Watts

pm = iteration power trace in Watts

M = number of iterations

 To reduce the effect of phase noise
Log

To distinguish low power continuous wave signals from noise
Scalar Field measurements
Max To observe transient effects in spectrum
Min To observe transient effects in spectrum
Vector

where,

 To reduce noise (non phase coherent signals) in a synchronous signal. The acquisitions must be triggered to synchronize the signal.

Other Measurements

The following table lists the supported averaging types for results.

Type Formula
Mean

where,
Max
Min
Min Max

The sign of V corresponds to the actual sample.