不确定性评估

J. Bertrand-Krajewski, M. Uhl, F. Clemens-Meyer
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引用次数: 48

摘要

评估测量中的不确定性必须成为城市排水和雨水管理领域的标准做法。本章介绍了三种估计不确定性的标准方法:A类方法(重复测量)、B类方法(不确定性传播定律)和MC方法(蒙特卡罗方法)。每种方法都描述了其基本原理和方程,详细介绍了各种示例,并给出了Matlab®代码,以方便日常应用的计算。提出了一种计算时间序列部分自相关的改进方法。最后,给出了城市排水和雨水管理中常用传感器的标准不确定度的典型数量级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Uncertainty assessment
Assessing uncertainties in measurements must become a standard practice in the field of urban drainage and stormwater management. This chapter presents three standard methods to estimate uncertainties: the Type A method (repeated measurements), the Type B method (law of propagation of uncertainties) and the MC method (Monte Carlo method). Each method is described with its fundamental principles and equations, various examples are presented in detail and Matlab® codes are given to facilitate the calculations for routine applications. An advanced method to account for partial autocorrelation in time series is presented. Lastly, typical orders of magnitude of standard uncertainties for usual sensors used in urban drainage and stormwater management are given.
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