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提高GTEM小室测量EMI噪声精度的研究

, PP. 169-176

Keywords: 吉赫兹横电磁波小室,辐射电磁干扰,多项式模型,方差,高阶矩

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Abstract:

针对吉赫兹横电磁波(gigahertztransverseelectromagnetic,GTEM)小室用于辐射电磁干扰(electromagneticinterference,EMI)测量精度不高的问题,提出一种GTEM小室测量EMI噪声的的校准方法,采用多项式模型提取辐射噪声,利用方差对该模型的计算误差进行补偿,并基于高阶矩分析校准后的GTEM小室和3m电波暗室测量辐射电场值分布的相似性。实验结果表明,采用该文所提方法可显著提高GTEM小室的测量精度,验证了方法的有效性。

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