瞬态电磁环境下电子信息系统的敏感指标设计研究

Research on the Design of Sensitive Indicators for Electronic Information Systems in Transient Electromagnetic Environment

随着科技的不断发展,瞬态电磁环境的频谱越来越宽,强度越来越大,电子信息系统呈现出集成化、高灵敏度和宽频带的趋势,伴随而来的问题是设备极易受瞬态电磁脉冲环境(如核电磁脉冲、雷电、高功率微波等)的影响,因此瞬态电磁环境下系统的电磁敏感性越来越受到关注。瞬态电磁环境主要通过前门耦合和后门耦合两种途径进入系统,为保证瞬态电磁环境不影响系统正常工作,亟需对系统进行电磁敏感性指标设计,使其满足适用于瞬态电磁环境的抗干扰性能限值。本文对瞬态电磁环境下电子信息系统的敏感指标设计研究,对设备互联线缆和接收机的敏感阈值指标进行设计,以保证其具备抵御给定瞬态电磁环境干扰的能力,并留有一定的安全余量。

With the continuous development of science and technology,the frequency spectrum of transient electromagnetic environment is getting wider and wider and the intensity is getting bigger and bigger,and the electronic information system presents the trend of integration,high sensitivity and wide bandwidth,and the accompanying problem is that the equipment is extremely susceptible to the influence of transient electromagnetic pulse environment(e.g.,nuclear electromagnetic pulse,thunder and lightning,high power microwave,etc.),so the electromagnetic sensitivity of the system under transient electromagnetic environment is getting more and more attention.Transient electromagnetic environment mainly through the front door coupling and back door coupling two ways into the system,in order to ensure that the transient electromagnetic environment does not affect the normal work of the system,there is a strong need to design the electromagnetic sensitivity index of the system,so that it can meet the anti-jamming performance limits applicable to the transient electromagnetic environment.The objective of this study is to investigate the design of robust indicators for electronic information systems in the presence of transient electromagnetic environments.Specifically,we aim to develop threshold indicators for equipment interconnection cables and receivers that can effectively withstand interference from a given transient electromagnetic environment while maintaining a sufficientsafetymargin.