中文摘要：

依据正理想状态和负理想状态提出了一种基于云重心的评判方法,并将该方法应用于机场电磁环境复杂度评估,处理了定性概念和定量表示的转换,为电磁环境的评估提供了一种方法.

英文摘要：

In this paper, the structure of airport electromagnetic environment （EME） and its complexity are analyzed. Based on the analysis, the method of improved cloud gravity center judgment is introduced in detail and used to assess the complexity of EME. It is convenient to deal with the transformation between the qualitative concepts and quantitative expressions with this method. And the method also provides an effective means for electromagnetic environment assessment.