新型的精密时差测量技术

doi:10.3969/j.issn.1001-2400.2015.06.026

J4 ›› 2015, Vol. 42 ›› Issue (6): 152-157.doi: 10.3969/j.issn.1001-2400.2015.06.026

新型的精密时差测量技术

屈八一1;张蕊1;张鑫1;宋焕生1;冯兴乐1;周渭2

(1. 长安大学信息工程学院，陕西西安 710064;
2. 西安电子科技大学机电工程学院，陕西西安 710071)

收稿日期:2014-06-30 出版日期:2015-12-20 发布日期:2016-01-25
通讯作者: 屈八一
作者简介:屈八一(1981-)，男，副教授，博士，E-mail: 404182049@qq.com．
基金资助:
陕西省工业攻关资助项目(2011K06-32)；中央高校基本科研业务费专项资金资助项目(CHD2011TD012，CHD2010JC080)；长安大学交通运输工程博士点基金资助项目(20120205110001)；中国博士后基金资助项目(2013M530411)；国家自然科学基金资助项目(60772135, 10978017)

Novel short time interval measurement technology with high precision

QU Baiyi1;ZHANG Rui1;ZHANG Xin1;SONG Huansheng1;FENG Xingle1;ZHOU Wei2

(1. School of Information Engineering, Chang'an Univ., Xi'an 710064, China;
2. School of Mechano-electronic Engineering, Xidian Univ., Xi'an 710071, China)

Received:2014-06-30 Online:2015-12-20 Published:2016-01-25
Contact: QU Baiyi

摘要/Abstract

摘要：

以实现对小于计数时钟1个周期的非周期性短时时间间隔的精确测量为目的，研究了将上述短时间间隔利用一定的电路转换成相应的周期性信号间的相位差，然后利用比相测量技术测得被测短时间间隔大小的方法，设计了基于环形振荡器和锁相技术的转换电路和具有优良线性和分辨率的相位差测试方案．新的测量技术的实验系统能实现对0～90000ps之间的被测信号的高精度测量，测量精度优于15ps，系统的随机误差不超过20ps．

关键词: 时间量化, 比相, 皮秒, 环形振荡器

Abstract:

To get a higher precision when measuring the short time interval which is less than the counting clock's cycle and has a non-periodic characteristic, a novel short time interval measurement technology with high precision is expounded, in which the short time interval will be measured by converting the time interval into the corresponding phase differences between the periodic signals by particular circuits, and the measurement will be proceeded based on phase comparison measurement technology. The paper gives the conversion circuits based on ring oscillators and phase-locked-loop technology, as well as the designing method of the phase comparison device with fine linearity and resolution. The time interval between 0 to 90ns can be measured by the current experimental system with an error of no more than 15ps. Experimental results also show that the random error caused by the noise floor of the system is as low as 20ps.

Key words: time digitalization, phase comparison, picoseconds, ring oscillator

中图分类号:

TM935.15

屈八一;张蕊;张鑫;宋焕生;冯兴乐;周渭. 新型的精密时差测量技术[J]. J4, 2015, 42(6): 152-157.

QU Baiyi;ZHANG Rui;ZHANG Xin;SONG Huansheng;FENG Xingle;ZHOU Wei. Novel short time interval measurement technology with high precision[J]. J4, 2015, 42(6): 152-157.

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新型的精密时差测量技术

Novel short time interval measurement technology with high precision

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