The existing literatures, concentrating on the statistical analysis of transient response of antennas, radiated by high-altitude electromagnetic pulse, always choose an area-based method to calculate the statistics from the perspective of explosion. However, it may be more suitable to analyze from the view of the affected facility position. In this paper, we demonstrate a statistical analysis comparison of multiple norms of the transient response from both viewpoints. Distinguished from the burst view, the location of the affected facility is set as the observer location, and the formulas of uncertain factors, involved in the HEMP coupling calculation of monopole antenna, are derived. An efficient statistical method, based on Polynomial Chaos and Moment of Method, is applied to compute the statistical results of monopole antenna in a finite conductive plane. The statistical comparison reveals several primarily interesting conclusions in the end, which will be beneficial for system-level HEMP vulnerability assessment.

现有文献集中于对高空电磁脉冲辐射的天线瞬态响应的统计分析，总是从爆炸的角度选择基于面积的方法来计算统计量。但是，从受影响的设施位置的角度来分析可能更合适。在本文中，我们从两个角度展示了瞬态响应的多个范数的统计分析比较。区分突发视图，将受影响设施的位置设置为观测器位置，推导出单极天线HEMP耦合计算中涉及的不确定因素公式。一种高效的统计方法，基于多项式混沌和方法矩，用于计算有限导电平面内单极天线的统计结果。统计比较最终揭示了几个主要有趣的结论，这将有利于系统级 HEMP 漏洞评估。