电子学报 ›› 2018, Vol. 46 ›› Issue (4): 945-951.DOI: 10.3969/j.issn.0372-2112.2018.04.024

• 学术论文 • 上一篇    下一篇

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

朱江淼1, 赵琳潇1, 缪京元2, 杨洁1   

  1. 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
  • 收稿日期:2016-05-06 修回日期:2017-03-23 出版日期:2018-04-25
    • 作者简介:
    • 朱江淼 女.现为北京工业大学信息学部副教授,硕士生导师.她与国家计量测量研究所合作,参与建立脉冲参数和时间和频率参数国家标准.她目前的研究兴趣包括数字信号处理、现代测量、时域测量和数字去卷积应用.E-mail:zhujaingmiao@bjut.edu.cn;赵琳潇 女.1991年11月出生,河南三门峡人.2010年-2014年就读于华东交通大学,并获得学士学位.现为北京工业大学信息学部硕士研究生.目前的研究方向为脉冲测量、不确定度评定等.E-mail:18201323270@126.com
    • 基金资助:
    • 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)

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

ZHU Jiang-miao1, ZHAO Lin-xiao1, MIAO Jing-yuan2, YANG Jie1   

  1. 1. Faculty of Information Technology of Beijing University of Technology, Beijing 100124, China;
    2. National Institute of Metrology, Beijing 100013, China
  • Received:2016-05-06 Revised:2017-03-23 Online:2018-04-25 Published:2018-04-25
    • Supported by:
    • National Key Technology Research and Development Program New Generation of Information Technology (No.2014BAK02B03); Research on Time-Domain Transfer Impedance Measurement Technology of Public Welfare Industry in Quality Inspection (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.

关键词: 脉冲测量, 标准脉冲法, 光脉冲源, 反卷积, 互相关算法

Abstract:

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.

Key words: pulse measurement, optical pulse source, standard pulse method, deconvolution, cross correlation algorithm

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