Delta EVM Time (Graph Traces)
shows the magnitude of the differential error vector between the stimulus and response signals, calculated at each time point. See the Delta EVM graph result topic for more information on how differential EVM Error vector magnitude (EVM): A quality metric in digital communication systems. See the EVM metric in the Error Summary Table topic in each demodulator for more information on how EVM is calculated for that modulation format. is calculated, including a discussion about the difference between Standard EVM and Differential EVM.
Band Power Markers on the “Delta EVM Time” trace is computed as ‘%rms’ units. The “Delta EVM” metric is computed as ‘%’ units. To match the values requires an RMS-to-pk unit conversion of sqrt(2).
See Also
