FSMR50矢量信號分析儀的使用和EVM不確定度評定分析

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中圖分類號：TN98 文獻(xiàn)標(biāo)志碼：A 文章編號：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

數(shù)字通信技術(shù)因其具有帶寬利用率高、抗噪聲性能好、保密性強(qiáng)等優(yōu)勢，已成為現(xiàn)代通信系統(tǒng)的基本技術(shù)[]。（剩余4286字）