无线电引信扫频波辐照效应及作用机理研究

介绍无线电引信扫频波辐照试验系统，在引信本振频率外较宽范围内，对某型引信进行扫频波辐照试验，结果表明：扫频波辐照能使无线电引信误炸，扫频频段不同，误炸干扰阈值不同；扫频步长、频点驻留时间与引信误炸密切相关，但不会影响引信误炸干扰阈值。其作用机理是：扫频波辐照导致引信自差机振荡状态跃变，引信高频电路输出方波脉冲串，推动执行级误动作使引信误炸。

Research on the Effects and Effecting Mechanism of Sweep Frequency Wave Irradiation to Radio Fuze

The experiment system of sweep frequency wave irradiation of radio fuze is introduced. In the width of frequency far from the radio fuze local frequency, the experiment of sweep fre- quency wave irradiation of radio fuze is carried out. The experiment results show that sweep fre- quency wave irradiation can lead to the accidental explosion of radio fuze; when irradiation fre- quency band is different, the field intensity for accidental explosion is different; the step length and stay time of sweep frequency wave is correlative to radio fuze accidental explosion, but it is unable to influence the field intensity for accidental explosion. The effecting mechanism of sweep frequency wave irradiation of radio fuze is that the sweep frequency wave irradiation causes the oscillatory regime change abruptly, the high frequency circuit exports square pulses and forces the executive circuit action mistakenly,resulting in the accidental explosion of radio fuze.