辐射电磁干扰噪声预估方法校准研究

Prediction Research on Radiated Eletromagnetic Inference Noise Using Calibration Method

针对电压驱动模型预估PCB辐射电磁干扰噪声方法精度低的问题,采用方差校准方法,分析各频率点误差与均值之间的偏离程度,进行数据补偿,并给出了相应的理论分析与实验数据.结果表明:方差校准法能够有效弥补电压驱动模型预估方法精度差的问题,为进一步改进辐射电磁干扰预估方法提供了借鉴.

According to the low accuracy of voltage driven radiation algorithm result, variance calibration method was used to analyze the errors between the average value and voltage driven radiation algorithm result, then give the data compensation. This paper gives the corresponding theoretical analysis and the experimental data. The results show that the variance of calibration method can effectively compensate the low accuracy of voltage driven radiation algorithm result and provide the effective reference for the later high frequency radiated interference＇s estimation and the diagnosis work.