An algorithm to reduce automated emission measurement data

B. R. Crain
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引用次数: 1

Abstract

When performing automated measurement of electromagnetic interference (EMI) emission characteristics of an equipment, the resulting data sets can contain hundreds or thousands of data points. From the standpoint of an engineer trying to assess the electromagnetic compatibility (EMC) of the equipment in a particular platform, the envelope of the emission spectrum is typically of greatest importance. It is desirable to have an automated method of reducing the large data set into a compact set that contains only those points which represent a close approximation to the spectrum envelope. An algorithm has been developed which performs automated reduction of emission data. The degree of reduction can be varied by the user through the choice of two parameters. Trial results show that the algorithm performs very well in approximating the envelope of typical emission curves.<>
一种减少自动排放测量数据的算法
在对设备的电磁干扰(EMI)发射特性进行自动测量时,所得到的数据集可能包含数百或数千个数据点。从工程师试图评估特定平台中设备的电磁兼容性(EMC)的角度来看,发射频谱的包络线通常是最重要的。希望有一种自动化的方法将大数据集简化为一个紧集,该紧集只包含那些表示与谱包络非常接近的点。开发了一种自动减少排放数据的算法。减少的程度可以由用户通过选择两个参数来改变。实验结果表明,该算法能很好地逼近典型发射曲线的包络线
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