数字调制信号误差矢量幅度校准研究

从计量领域的现状看，对于矢量信号分析仪的误差矢量幅度，分析其准确度尚没有业内统一的方法。通过对数字调制信号的调制过程和解调过程的分析，罗列出影响误差矢量幅度的各种因素。在此基础上，总结出一套对误差矢量幅度的测量结果的理论计算方法，从而提出一种EVM测量结果的不确定度评定方法。此方法能够有效地分析误差矢量幅度的数字特性。

Research on Calibration for Error Vector Magnitued of Digital Modulation Signal

There is still no union method to analyze EVMin the metrology field. In this project, In the project, we will study the modulation process and demodulation process of the digital modulation signals, and list all kinds of the factors which effect the EVMmeasurement results. On the base of these factors, we will find a newway to calculate the results of EVM,and a method to evaluate the measuring uncertainty of EVM. The character of EVMcan be analyzed availably in the method.