现代防御技术 ›› 2022, Vol. 50 ›› Issue (5): 85-92.doi: 10.3969/j.issn.1009-086x.2022.05.012

• 目标特性与探测跟踪技术 • 上一篇    下一篇

间歇采样移频重复转发高效干扰方法研究

刘一兵, 常文泰, 徐忠富, 任丙印   

  1. 中国人民解放军63892部队,河南 洛阳 471000
  • 收稿日期:2021-12-23 修回日期:2022-04-13 出版日期:2022-10-28 发布日期:2022-11-03
  • 作者简介:刘一兵(1993-),男,河南洛阳人。研究实习员,硕士,研究方向为雷达对抗仿真。

Study on Efficient Method of Interrupted Sampling Periodic Repeater Jamming Based on Frequency Shift

Yi-bing LIU, Wen-tai CHANG, Zhong-fu XU, Bing-yin REN   

  1. PLA,No. 63892 Troop,Henan Luoyang 471000,China
  • Received:2021-12-23 Revised:2022-04-13 Online:2022-10-28 Published:2022-11-03

摘要:

针对传统的间歇采样重复转发干扰不能完全对准真实目标,且干扰作用效果单一的缺点,分析了间歇采样重复转发参数对干扰效果的影响,确定调频参数,使得压制假目标群完全对准真实目标;提出一种基于移频重复转发的高效干扰方法,对采样周期内频率分量位于带宽两端的采样信号,采用分段移频的方法,使得转发的子脉冲在同一时刻叠加脉压增益,形成超前或滞后的欺骗假目标,频率分量位于带宽中间采样信号采用固定移频调制,形成压制假目标群。仿真结果验证了假目标空间分布推导的准确性,该方法可对真目标同时进行欺骗和压制干扰,具有双重作用效果,资源利用高效。

关键词: 线性调频信号, 间歇采样转发, 移频调制, 脉冲压缩, 欺骗假目标

Abstract:

For the conventional interrupted sampling periodic repeater jamming cannot be completely aligned with the real target, and the interference effect is single, this paper analyzes the parameters with the influence of interrupted sampling periodic repeater jamming effect and determines the frequency shift parameter to make the suppressed false target groups aligned with the real target. An efficient jamming method based on frequency shift repeater is proposed. For the sampled signals whose frequency are at both ends of the bandwidth, a segmented frequency shift method is used to make the sub-pulses superimposed on pulse compression gain to produce deceptive false target ahead or behind of the real target, and the sampled signals with the frequency located in the middle of the bandwidth use fixed frequency shift modulation to produce suppressed false target groups. Simulation results verify the derivation accuracy of the fake target spatial distribution, and the method can deceive and suppress the real target simultaneously, which has dual effects and high efficiency in resource utilization.

Key words: linear frequency modulation(LFM) signal, interrupted-sampling and repeater, frequency shift modulation, pulse compression, deceptive false target

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