调频无线电引信扫频波辐照效应研究  

Study on Irradiation Effects of FM Fuze under Sweep Wave

作　　者：张守龙[1] 武占成[1] 孙永卫[1] 熊久良[1] 

机构地区：[1]军械工程学院静电与电磁防护研究所,石家庄050003

出　　处：《微波学报》2015年第3期27-30,共4页Journal of Microwaves

基　　金：国家重点基础研究发展计划(613196)

摘　　要：为研究调频无线电引信抗电磁干扰性能,开展了调频引信扫频波辐照实验,获得了引信工作状态下的电磁辐照效应规律、能量耦合通道及失效机理。实验表明,当弹体轴线平行于辐射场传播方向时,引信误动作的辐照能量最小;随着扫频频段与引信工作频段偏移量增大,引信误动作所需扫频能量增大。对引信进行改装并做对比实验,发现引信天线是干扰的主要耦合途径。干扰能量通过天线耦合到引信高频电路,引信的工作状态发生改变,从而使引信误动作。For the study of resistance to electromagnetic interference,the sweep wave irradiation test of a certain type of FM fuse was carried out,which obtained electromagnetic irradiation effects,energy coupling channel and failure mechanisms of the fuze under working. Experiments show that when the projectile axis parallel to the direction of propagation of the radiation field,irradiation energy needed to make fuze malfunction is smallest; With the offset between sweep frequency and operating band of the fuze increased,irradiation energy needed to make fuze malfunchion increase. Refit the fuse and make comparative experiments,we found that fuse antenna is the main coupling path of interference energy. Interference energy coupling by the antenna makes high-frequency circuits disordered,work status of fuses changed,and eventually led to fuze malfunction.

关 键 词：调频引信 扫频波 辐照效应 耦合机理 

分 类 号：TN911.4[电子电信—通信与信息系统]