Evaluation on the Accuracy Using the Modified Error Vector Magnitude for Impedance Measurements

Data-driven models can often be modeled based on external characteristics without the need to know the internal structure and control methods of the model. The challenge is that the measurements impedance data cannot be evaluated without unify process. The definition of error in vector measurements is explained. Meanwhile, three dominant accuracy criteria are presented and compared. Finally, the method proposed in this paper is validated by test set data. Improvements are proposed for the measurement accuracy of two-dimensional vectors, which are expected to be helpful for future data analysis.