基于光脉冲源的标准脉冲法的宽带取样示波器校准技术研究  

Research on the Calibration Technology of Broadband Sampling Oscilloscope Based on the Standard Pulse Method of an Optical Pulse Source

作　　者：朱江淼 赵琳潇 缪京元[2] 杨洁 ZHU Jiang-miao;ZHAO Lin-xiao;MIAO Jing-yuan;YANG Jie(Faculty of Information Technology of Beijing University of Technology,Beijing 100124,China;National Institute of Metrology,Beijing 100013,China)

机构地区：[1]北京工业大学信息学部,北京100124 [2]中国计量科学研究院,北京100013

出　　处：《电子学报》2018年第4期945-951,共7页Acta Electronica Sinica

基　　金：国家科技支撑计划新一代信息计量技术(No.2014BAK02B03);质检公益性行业时域阻抗计量技术研究(No.20140010)

摘　　要：本文构建了基于光脉冲源的示波器校准系统,用标准脉冲法实现了对宽带取样示波器Agilent 86100C的70GHz取样模块86118A的校准.在校准实现过程中,首次综合研究了三种时基误差对校准结果的影响,并采用互相关算法去除时基漂移,最小二乘法修正时基失真,利用反卷积去除时基抖动.实验结果表明,本文方法实现了对70GHz宽带取样示波器的校准,有效地去除了时基误差,满足校准精度的要求.This paper constructed a calibration system of oscilloscope based on the optical pulse source.The 70GHz sampling module 86118A of Agilent 86100C was calibrated based on optical pulse source using the standard pulse method.In the calibration process,the influences on calibration results of three kinds of time base errors were researched for the first time,e.g.,time base drift was removed using a cross-correlation algorithm,time base distortion was corrected using the least squares method,and jitter was removed by using PDF deconvolution.Experiment results showed that calibration of 70GHz broadband oscilloscope was realized,the time base errors could be effectively removed by this method,and the accuracy of the calibration was satisfied.

关 键 词：脉冲测量 标准脉冲法 光脉冲源 反卷积 互相关算法 

分 类 号：TM935[电气工程—电力电子与电力传动]