Glossary Definition for EVM

Glossary Term: EVM 


Error Vector Magnitude: A measure of the difference between the (ideal) waveform and the measured waveform. The difference is called the error vector, usually referred to with regard to M-ary I/Q modulation schemes like QPSK, and shown on an I/Q "constellation" plot of the demodulated symbols. Also see: "Phase Noise and TD-SCDMA UE Receiver,"
  • Error Vector Magnitude

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