Interference Analysis of Step-forward Sweep Frequency Wave on a Certain Decimeter Wave Fuze

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Interference Analysis of Step-forward Sweep Frequency Wave on a Certain Decimeter Wave Fuze

更新时间：2025-12-08

- Interference Analysis of Step-forward Sweep Frequency Wave on a Certain Decimeter Wave Fuze
- Vol. 44, Issue 4, Pages: 1225-1231(2018)
- 作者机构：
  
  工程兵科研三所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 May 2018，
  
  Published：2018
- 稿件说明：
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XIONG Jiuliang. Interference Analysis of Step-forward Sweep Frequency Wave on a Certain Decimeter Wave Fuze[J]. 2018, 44(4): 1225-1231.
DOI：

XIONG Jiuliang. Interference Analysis of Step-forward Sweep Frequency Wave on a Certain Decimeter Wave Fuze[J]. 2018, 44(4): 1225-1231. DOI：

摘要

为研究步进式扫频波（SSFW）对某型分米波引信的干扰规律

理论推导并分析了步进式扫频波干扰下引信的启动特性

开展了辐照效应试验

确定了受试引信步进式扫频波干扰规律和机理。研究结果表明:（1）步进式扫频波可以使受试引信意外发火;（2）引信对步进式扫频波的敏感因素包括扫频频段、扫频步长、能量和频点驻留时间;（3）扫频步长和频点驻留时间分别影响引信检波电压脉冲幅值与重复周期

在其他参数满足要求的前提下

受试引信意外发火时要求扫频步长≥3 k Hz

频点驻留时间≤20 ms;（4）受试引信临界干扰场强不受扫频参数的影响;（5）扫频波对受试引信的干扰机理为: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

进而推动引信执行电路误动作。

Abstract

In order to research the interference rules of step-forward sweep frequency wave（SSFW） on a certain decimeter wave fuze

we theoretically deduced and analyzed the startup characteristics of the fuze in SSFW irradiation.Irradiation effect experiments were done

and interference rules and mechanism were confirmed.Experiment results show that:（1） SSFW irradiation can make the test fuze accidental fire;（2） sensitivity factors of SSFW on test fuze include the sweep frequency band

sweep frequency step

irradiation energy

and frequency stay time;（3） the sweep frequency step and frequency stay time can affect the demodulation voltage amplitude and the repetition period

respectively.When other parameters satisfy the requirements

the step length should be not shorter than 3 kHz and the frequency stay time should be not long than 20 ms in the fuze misaction;（4） the threshold interference field（TIF） is not affected by the sweep parameters;（5） the interference mechanism is that the frequency change of SSFW 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 mis-action.

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