西北核技术研究所,陕西西安 710069
[ "张金颢 男, 1997年7月出生于四川省绵阳市.现为西北核技术研究所助理工程师,从事电磁仿真与瞬态电磁脉冲测量相关工作.E-mail: fengxueljc@163.com" ]
[ "周 恒 男, 1982年7月出生于湖南省芷江县.现为西北核技术研究所工程师,从事瞬态电磁脉冲方面的研究. E-mail: zhouheng19820510@163.com" ]
张守龙 男, 1990年6月出生于安徽合肥市.现为西北核技术研究所工程师,主要研究方向为瞬态电磁脉冲的测量与计量. E-mail: Hollyhock15@126.com
蒋廷勇 男, 1982年7月出生于广西桂林市.西北核技术研究所高级工程师,博士,主要研究方向为强电磁脉冲试验相关技术. E-mail: jty725@aliyun.com
王胜涛 男, 1980年12月出生于山东省乳山市.现为西北核技术研究所工程师,主要研究方向为现代通信技术和强电磁环境构建技术. E-mail: 233540068@qq.com
刘 真 男, 1987年10月出生于湖南省娄底市.现为西北核技术研究所工程师,主要从事瞬态电磁脉冲技术相关工作. E-mail: 543253654@qq.com
收稿:2021-08-24,
修回:2022-11-02,
纸质出版:2023-03-25
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张金颢,周恒,张守龙等.基于仿真及神经网络的大型电磁脉冲模拟器近区场计算[J].电子学报,2023,51(03):712-719.
ZHANG Jin-hao,ZHOU Heng,ZHANG Shou-long,et al.Calculation of Near-Field of Large-Scale Electromagnetic Pulse Simulator Based on Simulation and Neural Network[J].ACTA ELECTRONICA SINICA,2023,51(03):712-719.
张金颢,周恒,张守龙等.基于仿真及神经网络的大型电磁脉冲模拟器近区场计算[J].电子学报,2023,51(03):712-719. DOI: 10.12263/DZXB.20211137.
ZHANG Jin-hao,ZHOU Heng,ZHANG Shou-long,et al.Calculation of Near-Field of Large-Scale Electromagnetic Pulse Simulator Based on Simulation and Neural Network[J].ACTA ELECTRONICA SINICA,2023,51(03):712-719. DOI: 10.12263/DZXB.20211137.
本文针对大型电磁脉冲模拟器试验区域电场分布测量,设计了一种基于传递函数的近区场波形预估方法.该方法使用全波仿真获取初始传递函数,研究了基于频域数据的神经网络训练方法,建立了可以计算特定区域任意测点传递函数的神经网络模型.利用两套测量系统同时进行测量验证,结果表明:在40 m×40 m×10 m的范围内,该计算方法可以基于单一测点的实测结果计算任意点的电场波形,且基于该方法计算的电场波形与实测波形主波形幅值差异均小于3%,实测验证波形结果与预估结果基本一致.文中方法在满足试验区域为线性时不变(Linear Time Invariant, LTI)系统的情况下,可以应用于大型电磁脉冲模拟器的近区场快速预估计算.
Aiming at the large-scale electromagnetic pulse simulator
this paper designs a near-field waveform calculation method based on the transfer function. This paper uses full-wave simulation to obtain the initial transfer function
studies the neural network training method based on frequency domain data
and establishes a transfer function neural network model that can calculate any measurement point in a specific area. The results of simultaneous measurement using two sets of measurement systems show that within a range of 40 m×40 m×10 m
this calculation method can calculate the electric field waveform at any point based on the actual measurement result of a single measurement point. The difference between the electric field waveform calculated based on this method and the measured waveform amplitude is less than 3%
so the measured verification results are consistent with the theory. In the case where the method meets the area as a linear time invariant system
the method can be applied to a near-field fast calculation of a large-scale electromagnetic pulse simulator.
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