IEC/TR 61282-10:2013（E）将误差矢量幅度（EVM）定义为量化来自发射器或光传输链路的光矢量调制（相位调制和可能的幅度调制）信号质量的度量。详细说明了再现性测量结果所需的注意事项。描述了星座图分析中误差向量、相位误差、幅度误差、I-Q偏移和时间分辨EVM等相关参数与EVM的关系，以及EVM与Q因子的关系。 关键词:误差矢量幅度（EVM）、光矢量调制信号的质量 本副本包含2013年4月勘误表的内容。

IEC/TR 61282-10:2013(E) defines the error vector magnitude (EVM) as a metric for quantifying the quality of an optical vector-modulated (modulation of phase and possibly magnitude) signal from a transmitter or optical transmission link. The considerations required for reproducible measurement results are detailed. The relationships with other related parameters from constellation diagram analysis like error vector, phase error, magnitude error, I-Q offset and time-resolved EVM are described, as well as the relationship between EVM and Q-factor. Key words: error vector magnitude (EVM), quality of an optical vector-modulated signal The contents of the corrigendum of April 2013 have been included in this copy.