학술논문
Method of Signal Generator Residual Error Vector Magnitude Estimation
Document Type
Conference
Source
2024 26th International Conference on Digital Signal Processing and its Applications (DSPA) Digital Signal Processing and its Applications (DSPA), 2024 26th International Conference on. :1-4 Mar, 2024
Subject
Language
Abstract
Noise from signal generators and signal analyzers often makes the main contribution to the error vector magnitude (EVM) measurement uncertainty when measuring instruments are directly connected. Cross-correlation methods are widely used to estimate the noise characteristics of measuring instruments. A cross-correlation method has been investigated to estimate the residual EVM of the signal generators separately from the signal analyzers EVM. The results of estimation the uncertainty of the EVM direct measurements in the range lower than the signal analyzer residual EVM are obtained. This aspect is important for the accurate of the EVM measurements, because it confirms the correctness of the algorithm and the cross-correlated EVM calculation.