基于自适应蒙特卡洛法的磁场辐射发射测量不确定度评定

针对测量不确定度评定中测量不确定度表示指南法（GUM）不适用于输入输出变量关系非线性或输出变量非正态分布的情况，提出采用自适应蒙特卡洛法（AMCM）评定25 Hz～100 kHz磁场辐射发射（RE101）测试的测量不确定度。首先阐述蒙特卡洛法（MCM）和AMCM评定测量不确定度的计算步骤，其次分别用AMCM和GUM法评定RE101测量不确定度，在相同的包含概率下比较两种方法的覆盖区间差值与数值允差，表明AMCM的评定结果可靠性更高，适用于RE101测量不确定度评定。AMCM可以推广到其他电磁兼容测试项目的不确定度评定中，将有效提高不确定度评定的可靠性。

Magnetic field radiated emissions measurement uncertainty evaluation using adaptive Monte Carlo method

Guide to the expression of uncertainty in measurement (GUM) is not suitable for uncertainty evaluation when the input and output variants are nonlinearly correlated or the output variant is not normally distributed. Aiming to this problem, adaptive Monte Carlo method (AMCM) is adapted for uncertainty evaluation of magnetic field radiated emissions measurement from 25 Hz to 100 kHz (RE101). At first, calculation steps for measurement uncertainty evaluation using Monte Carlo method (MCM) and AMCM are promoted. Then RE101 measurement uncertainty is evaluated by AMCM and GUM method respectively. By comparing the difference of coverage interval values of the two methods and the numerical tolerance, it is shown that the evaluation result of AMCM is more reliable, thus suitable for RE101 measurement uncertainty evaluation. The AMCM can be popularized to other electromagnetic compatibility (EMC) test items for measurement uncertainty evaluation, which improving measurement uncertainty evaluation reliability effectively.