METHOD AND DEVICE FOR DETERMINING ERROR VECTOR MAGNITUDE SERIES PARAMETER

摘要

Disclosed are a method and a device for determining an Error Vector Magnitude (EVM) series parameter. The method includes: acquiring a measurement signal; normalizing the measurement signal according to a power to obtain a normalized measurement signal; carrying out calculation according to the normalized measurement signal and an ideal signal to obtain an EVM; carrying out calculation according to the normalized measurement signal to obtain an IQ offset; eliminating the IQ offset to obtain an eliminated IQ offset measurement signal; carrying out calculation according to the eliminated IQ offset measurement signal to obtain an IQ gain imbalance; and carrying out calculation according to the eliminated IQ offset measurement signal to obtain a quadrature phase error.