基于随机耦合模型的系统级电磁环境效应分析

通过宽频带电磁环境下计算机机箱关键部位感应电压统计分布的实验验证和基于随机矩阵理论的耦合模型的理论计算研究，给出了随机耦合模型(RCM)的应用流程和计算方法；就散射系数、归一化散射和归一化阻抗矩阵的统计特性进行了理论和实验研究，实验测量结果与理论分析结果非常一致；针对RCM的应用进行了初步分析，验证了随机耦合模型在复杂电磁环境下系统级效应分析和预测的适用性。结果证明此方法尤其适用于大型的具有非平行面封装腔体电子设备的电磁兼容、效应及评估等研究。

Analysis of systemic electromagnetic environment effects based on Random Coupling Model

By experiment and Random Coupling Model（RCM）, the statistic characteristics of induced voltages at key points in computer box cavity are studied. The calculating method and application diagram of RCM is given. Scattering coefficients, the statistic characteristics of normalized scattering coefficient and normalized impedance coefficient are researched by experiment and theory. It is shown that the experiment results generally agree with the theoretical results in trend. Application of RCM is preliminarily discussed. Applicability of analysis and forecast on systemic electromagnetic environment effects based on RCM is validated. Especially, the RCM is applicable to investigation on electromagnetic compatibility, effects and assessment for the large scale nonparallel surface electronic systems.