基于多维度波形捷变的射频掩护脉冲设计

    Design of Radio Frequency-screen Signal Based on Waveform Agility with Multi-dimension

    • 摘要: 随着数字射频存储(DRFM)转发式干扰的不断发展,干扰机可以将多雷达信号干扰技术应用于单套雷达的干扰跟踪转发,传统的射频掩护方式已无法达到预期对抗效果。针对这一问题,从DRFM干扰的技术特点入手,提出了基于多维度信号波形捷变的射频掩护方法。该方法通过丰富雷达信号波形和提升切换速度,降低相邻雷达信号波形相关性,将波形捷变与射频掩护相结合,增强主动对抗多样性,以达到消耗DRFM干扰资源、减弱干扰强度的效果。通过仿真分析和实际测试验证了该种方法的有效性,结果表明,新方法的抗干扰效果较传统射频掩护方法有明显提升,为解决雷达对抗转发式干扰提供了一种新的角度。

       

      Abstract: With the development of digital radio frequency memory(DRFM) and repeater jamming, the jammer can apply the multi-radar signal jamming technology to the interference forwarding of a single set of radars, the traditional design of radio frequency- screen fails to achieve expected result. Starting from the technical characteristics of DRFM, a new design based on waveform agility with multi-dimension is introduced to solve this problem. The diversity of active confrontation is enhanced through improving the number, switching speed of radar signal waveform, reducing the correlation between radar signal waveforms, combining waveform agility with radio frequency-screen, in order to consume the DRFM resources and reduce the intensity of interference. The effectiveness and feasibility of the new design is verified through simulation analysis and actual testing. The result shows that the anti-jamming effect of the new design is significantly improved compared to the traditional design of radio frequency-screen technology. The presented results provide a new perspective for the counter of repeater jamming.

       

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