基于模式叠加理论的混响室蒙特卡洛模拟过程参数研究

Research on Parameters of Monte Carlo Simulation Based on Mode Expansion Method for Reverberation Chambers

混响室的统计建模是研究混响室内电磁场特性的重要手段。利用混响室概率统计模型,结合蒙特卡洛模拟方法,能够实现对混响室内随机场环境快速有效的建模和分析。针对基于模式叠加理论的混响室概率统计模型,给出了其蒙特卡洛模拟步骤,对蒙特卡洛模拟过程中涉及的可变参数,包括:搅拌器位置数、工作频率、模式权重系数等进行研究,计算并分析了这些参数变化对仿真结果产生的影响,得到的结论可为模式叠加方法重构混响室场环境提供指导。

Statistical modeling of reverberation chambers (RCs) is an important means of studying he characteristics of electromagnetic fields in RCs. Using the reverberation chamber probability statistical model and combining with the Monte Carlo simulation method, the random field environment in a RC can be quickly modeled and analyzed effectively. Aiming at probability statistical model of RC based on the mode expansion method, its Monte Carlo simulation steps are given. The variable parameters involved in the Monte Carlo simulation process include: the number of stirrer positions, the working frequency and the mode weight coefficient, etc, are studied. The effects of these variable parameter on the simulation results are calculated and analyzed, which can provide guidance for reconstructing the RC environment using the model superposition method.