摘要
为提高电子设备电磁兼容预测的准确性和抗干扰能力,提出基于部分元等效电路(PEEC)的电磁兼容性层次化预测方法。构建电子设备电磁信号模型,波束聚焦和模糊识别电磁信号后对其进行调制。利用空间波束形成处理方法对调制后的电磁信号进行兼容性融合和滤波处理,提取电磁信号的谱特征。采用PEEC参数估计方法结合谱特征结果多层次预测电子设备电磁兼容性。仿真结果表明,采用该方法对电磁兼容预测的拟合性较好,信号匹配度水平较高,抗干扰能力较强,明显提高预测电子设备电磁兼容性的准确性。
In order to improve the accuracy and anti-interference ability of electronic equipment EMC prediction,a hierarchical prediction method based on partial element equivalent circuit(PEEC)is proposed.The electromagnetic signal model of electronic equipment is constructed,and the electromagnetic signal is modulated after beam focusing and fuzzy recognition.The spatial beamforming processing method is used to fuse and filter the modulated electromagnetic signal,and the spectrum characteristics of the electromagnetic signal are extracted.The electromagnetic compatibility(EMC)of electronic equipment is predicted by using PEEC parameter estimation method and spectrum characteristic results.The simulation results show that the method has a good fit for EMC prediction,a high level of signal matching and strong anti-interference ability,which significantly improves the accuracy of electromagnetic compatibility prediction of electronic equipment.
作者
李建峰
张志君
王臻
魏诗朦
LI Jian-feng;ZHANG Zhi-jun;WANG Zhen;WEI Shi-meng(China Aviation Aircraft Co.,Ltd.,Xi'an 710089 China)
出处
《自动化技术与应用》
2021年第6期55-58,共4页
Techniques of Automation and Applications
