计量学报2018，Vol.39Issue(2)：285-288,4.DOI:10.3969/j.issn.1000-1158.2018.02.30
从“随机过程”的角度认识测量误差及其分类
The Cognition of Measurement Error and Classification from the Perspective of "Stochastic Process"
李冰莹 1李永新 2马宇明 1葛方丽2
作者信息
- 1. 南京理工大学,江苏南京210094
- 2. 江苏省计量科学研究院,江苏南京210023
- 折叠
摘要
Abstract
To points out that the measurement error has statistical characteristic when as a "stochastic process",it has been done that to analyze the error component's characteristic caused by different factor in "stochastic process" with the characteristic parameters such as self-correlation function and power spectrum density,and to come to the conclusion that the systematic error and random error in classical error theory should be the practical classification of this "stochastic process".The essences of systematic error and random error are two limit cases of "self-correlation".The systematic error is a completely positive correlation with the self-correlation coefficient equal to 1,and the random error is a completely none correlation with the self-correlation coefficient equal to 0.关键词
计量学/测量误差/随机过程/自相关性/系统误差/随机误差Key words
metrology/measurement error/stochastic process/self-correlation/systematic error/random error分类
通用工业技术引用本文复制引用
李冰莹,李永新,马宇明,葛方丽..从“随机过程”的角度认识测量误差及其分类[J].计量学报,2018,39(2):285-288,4.
