摘要
利用随机降阶模型(SROM)对影响线缆串扰的不确定变量进行了敏感性分析,在此基础上预测了在这些不确定性变量影响下的串扰不确定度。并搭建三导体传输线串扰实验系统,测量了近端串扰和远端串扰,根据标准G B/Z 6113.401—2018/CISPR/TR 16-4-1:2009,评估了串扰实验的测量不确定度。将基于SROM方法的串扰不确定度,与实际测量获得的不确定度进行对比。结果表明,二者随频率变化趋势一致,且实验测试不确定度在预测不确定度范围内。采用SROM方法选取样本计算的不确定度可用于预测串扰实际测量结果不确定度。
Sensitivity analysis of cable crosstalk to uncertain parameters is studied using stochastic reduced order model(SROM),and then the uncertainty of cable crosstalk is predicted.To verify the prediction,a three-conductor transmission line(TL)experiment system is established.Both near end and far end crosstalk(NEXT and FEXT)are tested.Then the measurement uncertainty is deduced according to the standard GB/Z 6113.401—2018/CISPR/TR 16-4-1:2009.Comparing the predicted uncertainty to the measured one,it is found that they have the same variation trends with frequency.Moreover,the measured uncertainty is within the range of the prediction.Therefore,the uncertainty prediction using SROM can be applied to predict the test uncertainty,which is instructive to the crosstalk measurement for both analysis model verification and experimental investigation.
作者
邓莉亭
钟龙权
刘强
孙子涵
闫丽萍
赵翔
Deng Liting;Zhong Longquan;Liu Qiang;Sun Zihan;Yan Liping;Zhao Xiang(Department of Electronic and Information Engineering,Sichuan University,Chengdu 610065,China;Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang 621900,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China)
出处
《强激光与粒子束》
CAS
CSCD
北大核心
2021年第8期137-144,共8页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(61877041)
成都市科技项目(2020-GH02-00061-Hz)。
关键词
串扰实验
随机降阶模型
敏感性
不确定度
crosstalk experiment
stochastic reduced order model(SROM)
sensitivity
uncertainty
