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引用次数: 3

摘要

随机电磁场可以用它们的场-场关系来描述。现代宽带时域测量设备和新的表征技术有助于对印刷电路板或其他电子设备和系统上的噪声或准随机辐射源产生的噪声电磁场进行精确建模。来源于高斯概率分布的平稳噪声可以用二阶矩来充分表征。在数字电路环境中,我们经常遇到辐射周期平稳噪声。在这篇贡献中,讨论了噪声电磁场表征的测量和建模技术。
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Modeling of stochastic electromagnetic fields
Stochastic electromagnetic fields can be described by their field-field correlations. Modern broadband time-domain measurement devices and new characterization techniques facilitate accurate modeling of noisy EM fields originating from noisy or quasi-stochastic radiation sources on printed circuit boards or other electronic devices and systems. Stationary noise originating from sources with a Gaussian probability distribution can be fully characterized by its second order moments. In the environment of digital circuits, we frequently encounter radiated cyclostationary noise. In this contribution, measurement and modeling techniques are discussed for the characterization of noisy electromagnetic fields.
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