FSMR50矢量信号分析仪的使用和EVM不确定度评定分析

打开文本图片集

中图分类号：TN98 文献标志码：A 文章编号：1003-5168（2025）13-0024-05

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.13.004

Application of FSMR5o Vector Signal Analyzer and EVM Uncertainty Evaluation

LIU Huiyan'SUN Rongxu² （1.The 27th Research Institute of China Electronic Technology Corporation， Zhengzhou 45o047，China; 2.Nanyang Product Quality Inspection and Testing Center，Nanyang 473OOo，China）

Abstract：[Purposes] How to use FSMR5O vector signal analyzer to achieve accurate measurement of complex vector modulation signal.[Methods] The measurement principle of vector signal modulation quality parameters is described，and the influence of different modulation parameters on calibration results is analyzed in detail according to the calibration specification for vector signal generator，and the uncertainty of EVMcalibration results is evaluated and analyzed.[Findings] Only when the reference frequency，filter combination，filter parameters and symbol rate all meet the requirements of calibration specifications and indexes can accurate measurements of vector-modulated signals be achieved.[Conclusions] Through research，the FSMR5O vector signal analyzer has been successfully implemented to measure the complex vector-modulated signal with high precision.

Keywords：EVM; reference frequency;symbol rate; filter parameters

0 引言

数字通信技术因其具有带宽利用率高、抗噪声性能好、保密性强等优势，已成为现代通信系统的基本技术[]。（剩余4286字）