强激光与粒子束, 2016, 28 (3): 033201, 网络出版: 2016-03-28  

无人机系统强电磁环境效应检测技术

Probing method of unmanned aircraft high power electromagnetic effects
作者单位
西北核技术研究所, 高功率微波技术重点实验室, 西安 710024
摘要
对电子系统强电磁环境实验效应检测技术研究现状进行了系统的研究分析,提出通过对内部电路节点电压信号实时监测实现无人机电子系统强电磁环境效应检测判断的方法。设计了以阻抗变换和电光转换电路为核心的光纤输出型电压探头,实现1 MΩ高输入阻抗、DC – 450 MHz带宽、数百m传输距离等技术要求。在无人机系统强电磁脉冲环境实验中利用所设计的电压探头实现了无人机舵机、飞控、链路等电路节点工作电压信号波形的远程监测,获取了无人机电路节点耦合的电压脉冲波形。
Abstract
This article made a review of methods used in capturing electronic system high power electromagnetic(HPEM ) effects tested on IC, PCB, and system level, and proposed that by monitoring voltage waveform at critical nodes of electrical circuits, various error effects could be monitored, classified, traced and determined for unmanned aircraft HPEM susceptibility test. A voltage probe with high input impedance as well as fiber optical output port was designed and achieved to satisfy special requirements of this application, which showed tested characteristics of 1 MΩ input impedance, DC-450 MHz bandwidth and compact size. Working voltage waveforms at nodes of rudder control circuit, RF link circuit et al of an unmanned aircraft were remotely monitored with this voltage probe. Coupled pulse voltage waveforms at circuit nodes were successfully probed in high field strength HEMP range test of an unmanned aircraft, which showed reasonable characteristics.
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闫军凯, 郝文析, 刘小龙, 燕有杰, 刘真. 无人机系统强电磁环境效应检测技术[J]. 强激光与粒子束, 2016, 28(3): 033201. Yan Junkai, Hao Wenxi, Liu Xiaolong, Yan Youjie, Liu Zhen. Probing method of unmanned aircraft high power electromagnetic effects[J]. High Power Laser and Particle Beams, 2016, 28(3): 033201.

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