Traceable measurement of Error Vector Magnitude (EVM) in WCDMA signals

摘要

This is the first report of a methodology to provide National Standards traceability for EVM measurement of WCDMA RF sources using waveform metrology techniques. The method uses sampling oscilloscopes or real-time digital oscilloscopes. Preliminary results indicate that the rms uncertainty of the modulation waveform, at 95 % confidence, is less than 0.3 %.