现代防御技术 ›› 2026, Vol. 54 ›› Issue (3): 180-189.DOI: 10.3969/j.issn.1009-086x.2026.03.016

• ?栏目名称:论文? • 上一篇    

FDA预警机抗反辐射导弹全向比幅单脉冲测向技术

张晶1, 王博2   

  1. 1.陕西交通职业技术学院,陕西 西安 710018
    2.空军工程大学 空管领航学院,陕西 西安 710051
  • 收稿日期:2025-08-16 修回日期:2025-12-15 出版日期:2026-06-28 发布日期:2026-07-03
  • 作者简介:张晶(1991-),女,陕西西安人。讲师,硕士,研究方向为新体制雷达技术。

Research on FDA-AWACS Countering Omnidirectional Amplitude-Comparison Monopulse Direction Finding Technology of Anti-radiation Missiles

Jing ZHANG1, Bo WANG2   

  1. 1.Shaanxi Transportation and Vocational Technology University,Xi′an 710018,China
    2.Air Traffic Control and Navigation School,Air Force Engineering University,Xi′an 710051,China
  • Received:2025-08-16 Revised:2025-12-15 Online:2026-06-28 Published:2026-07-03

摘要:

针对频控阵(frequency diverse array, FDA)预警机抗反辐射导弹(anti-radiation missile, ARM)防护需求,提出基于全向比幅单脉冲测向欺骗的方法。通过建立FDA雷达空间辐射模型,分析ARM被动雷达导引头的全向比幅测向机理,揭示FDA通过频偏增量Δf与功率比值Δ协同作用产生方位欺骗的机制。仿真表明:在10阵元、3 GHz载频、半波长阵列间距的配置下,系统可制造最大2°的测向偏差,使ARM脱靶距离提升4.8倍。误差分析显示,波束宽度变化与天线张角偏移进一步加剧测向误差。该技术通过干扰PRS的误差电压函数和归一化处理,为预警机抗精确打击提供了有效电子对抗手段。

关键词: 频控阵, 反辐射导弹, 预警机, 被动雷达导引头, 测向定位

Abstract:

This paper proposes an innovative omnidirectional amplitude-comparison monopulse direction-finding deception method to address the protection requirements of frequency diverse array (FDA) airborne warning and control system (AWACS) against anti-radiation missiles (ARMs). By establishing an FDA radar spatial radiation model and analyzing the omnidirectional amplitude-comparison direction-finding mechanism of an ARM’s passive radar seeker (PRS), the study reveals the mechanism by which FDA generates azimuth deception through the synergistic effect of frequency offset increment Δf and power ratio Δ. Simulations demonstrate that under a configuration of 10 array elements, a 3 GHz carrier frequency, and half-wavelength array spacing, the system can induce a maximum direction-finding deviation of 2°. Error analysis shows that beamwidth variation and antenna aperture offset further exacerbate direction-finding errors. This technology effectively interferes with the PRS error voltage function and normalization processing, providing an effective electronic countermeasure for AWACS against precision strikes.

Key words: frequency diverse array(FDA), anti-radiation missile(ARM), airborne warning and control system, passive radar seeker, direction finding and localization

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