连续波Doppler引信扫频波辐照效应  

Radiation Effect of Continuous Wave Doppler Fuze Under Sweep Frequency Wave

作　　者：熊久良[1] 武占成[1] 孙永卫[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：《高电压技术》2015年第12期4220-4225,共6页High Voltage Engineering

基　　金：国防973项目(613196);国防科技重点实验室基金(9140C87010213JB34005)~~

摘　　要：为研究扫频波对连续波Doppler引信的效应规律及作用机理,开展了典型引信扫频波辐照效应试验,结合现有文献研究结论,提出了普适的扫频波辐照下连续波Doppler引信效应规律及作用机理。试验结果表明:扫频波辐照下引信会意外发火,引信临界干扰电场强度与扫频频段有关;扫频步长、频点驻留时间与引信是否意外发火密切相关,受试引信意外发火时要求扫频步长≥7 k Hz,频点驻留时间≤483 ms;扫频参数不会影响受试引信临界干扰电场强度。扫频波辐照下连续波Doppler引信意外发火原因为:扫频波频率变化导致引信自差机振荡状态发生跳变,引起高频电路输出电压波动,从而推动执行级误动作。In order to research the effect rule and mechanism of continuous wave Doppler fuze （CWDF） under sweep frequency wave （SFW） radiation, typical fuze experiments are done. Referring to the previous conclusions, we put for- ward the effect rule and mechanism of CWDF under SFW radiation. Experimental results show that SFW radiation will lead to the accidental explosion of the fuze, and the threshold interference electric field strength changes with the radia- tion frequency band. The step length and stay time of SFW are correlated to fuze accidental explosion. The step length should be not shorter than 7 kHz and the frequency stay time should be not longer than 483 ms. However, the sweep pa- rameters are unable to influence the threshold interference electric field strength. The accidental firing reason of SFW radiation of CWDF is that the frequency change of SFW radiation causes the state change of oscillatory abruptly, which will make the output voltage of the high frequency circuit to fluctuate. Then the changing state will force the executive circuit action mistakenly.

关 键 词：扫频波 连续波Doppler引信 扫频步长 频点驻留时间 临界干扰场强 失效机理 

分 类 号：TJ430[兵器科学与技术—火炮、自动武器与弹药工程]