Uncertainty of decibel levels
Uncertainty of decibel levels
复制标题
DOI：
10.1121/1.4929619
复制
发表时间：
2015-09-01
影响因子：
2.4
通讯作者：
Jonasson, Hans
中科院分区：
文献类型：
--
作者：
Taraldsen, Gunnar;Berge, Truls;Jonasson, Hans
一个声源的平均声暴露水平通常是通过重复测量所观察到的声暴露的平均值来估计的。根据《测量不确定度表示指南》，推导出了标准不确定度的计算公式。一个替代公式推导出的情况下，GUM方法失败。该公式适用于几个例子，并与蒙特卡罗计算的标准不确定度。推荐的公式可以简单地看作是能量标度上的不确定性到分贝级标度的方便转换，但具有理论基础。(C)2015年美国声学学会
The mean sound exposure level from a source is routinely estimated by the mean of the observed sound exposures from repeated measurements. A formula for the standard uncertainty based on the Guide to the expression of Uncertainty in Measurement (GUM) is derived. An alternative formula is derived for the case where the GUM method fails. The formulas are applied on several examples, and compared with a Monte Carlo calculation of the standard uncertainty. The recommended formula can be seen simply as a convenient translation of the uncertainty on an energy scale into the decibel level scale, but with a theoretical foundation. (C) 2015 Acoustical Society of America