3种求解不确定度方法的对比分析研究  

Contrast analysis of three types of calculating methods of uncertainty

作　　者：唐雪海[1] 袁进军[1] 冯仲科[1] 曹忠[1] 刘德庆[1] 李影[1] 王永国[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室北京林业大学测绘与3S技术研究中心,北京100083

出　　处：《安徽农业大学学报》2010年第2期378-381,共4页Journal of Anhui Agricultural University

基　　金："863"国家高技术研究发展计划项目(2009AA12Z327)资助

摘　　要：测量误差用于表征测量结果偏离其真值的程度,测量不确定度是对测量结果质量的定量表征,将测量误差和不确定度融为一体,由基于分布特征的不确定度研究向非统计特征不确定度研究成为误差理论发展方向。本文叙述了基于正态分布的误差和不确定度的贝赛尔评定法、误差和不确定度的灰评定及误差和不确定度的模糊评定,并以实例演示了3种方法的求解过程,最后剖析了求解误差和不确定度的3种方法的本质并给出针对不同的数据特征选用不同评定方法的原则。Measurement error is used for indicating the degree that measurement results deviate from its true value and uncertainty is a criterion of measurement results.Error has the trend from measurement uncertainty research based on distribution characteristics to no-statistical uncertainty research.The paper discusses the Bessel assessment method of surveying error and uncertainty based on the normal distribution and the grey evaluation and fuzzy assessment of surveying error and uncertainty,then demonstrates the solution process of three approach using actual data.At last,the paper analyzes the essence of three solution methods and points out the principles that different methods are chosen on basis of different data characteristics.

关 键 词：误差 不确定度 评定 对比 

分 类 号：P207[天文地球—测绘科学与技术]