Application of the Multi-element Grid in EMC Uncertainty Simulation

??? Uncertainty analysis is a research hotspot in the field of electromagnetic compatibility (EMC) simu-lation. The stochastic collocation method (SCM) is con-sidered particularly suitable for uncertainty analysis in the EMC field because it is characterized by a high level of computational efficiency and accuracy while requir-ing no replacement solver. However, the post-processing process of the SCM is too complex, which will seriously limit its application in many industrial environments such as real-time simulation analysis. Multi-element grid (MEG) is a novel uncertainty analysis method recently for successful application in another area. It is proved that its calculation accuracy is same as the SCM, and its post-processing process is facile. This paper introduces the MEG to the EMC field and makes a detailed compar-ison between it and the SCM in performance, aiming to apply uncertainty analysis to solve more practical EMC engineering problems.