校园电磁环境测量与相关性分析
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O441

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Measurement and Correlation Analysis of Electromagnetic Environment in a Campus
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    摘要:

    本文针对某校园的电磁环境进行了测量与统计分析,展示了校园内电磁环境的空间分布情况,同时对比了不同区域电磁环境的分布,绘制了测量数据的概率密度函数图,得到了一些有价值的统计结果. 这些实测数据和统计结果对于评估和分析电磁环境提供了必要的支持,对于电磁环境的理论分析方法也提供了可比对的数据. 最后,本文提出了一种利用相关性来表征电磁环境复杂度的方法,利用两个场强探头同时采集空间中不同位置的电场幅值,对其电场幅值的时间序列做相关性计算,以此来评估电磁环境复杂度的高低,并给出三个不同区域电场分量与总场幅值的相关系数随距离变化图.

    Abstract:

    In this paper, the electromagnetic environment (EME) in a campus is measured and then analyzed adopting statistical method. The results establish the spatial distribution of the EME in this campus, and the characteristics of EME in different areas are compared. The probability density functions (PDF) of the measured data are calculated and depicted, and some other valuable results are also obtained. These measured data and statistical results provide necessary support for evaluating and analyzing the EME. And these data could be utilized to affirm theoretical analysis method of EME. Finally, this paper presents a method that using Correlation to represent the complexity of EME. Two electromagnetic field intensity probes are used to sample the electric field strength of different positions simultaneously, the Correlation Coefficients between two electric field strength versus two different time series are calculated to measure the complexity of EME, and the figures of correlation coefficient corresponding to each component and total field versus distances are presented.

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引用本文格式: 许金海,赵翔,张明安,闫丽萍,周海京. 校园电磁环境测量与相关性分析[J]. 四川大学学报: 自然科学版, 2016, 53: 347.

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历史
  • 收稿日期:2015-03-12
  • 最后修改日期:2015-03-30
  • 录用日期:2015-04-16
  • 在线发布日期: 2016-05-30
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