主动和混合寻的导弹雷达目标识别与跟踪算法

Alaa G. A. Abd-Elfattah, A. E. Farahat, K. Hussein, Magdy A. Kotb
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引用次数: 1

摘要

提出了一种战斗机主动寻的和混合寻的导弹识别雷达目标的新方法。所提出的程序依赖于作为喷气发动机进气和排气管道存在的腔背孔的内部共振形成的特征。这些管道被建模为实际尺寸的开口导电圆柱形管,圆柱形腔内放置径向导电叶片。压缩雷达脉冲是通过使用线性调频(LFM)的啁啾形成的,覆盖1.0 - 2.0 GHz的频带,该频带足够宽,可以区分各种目标。雷达横截面(RCS)作为频率的函数是通过使用CST®模拟器并采用上述管道模型和脉冲平面波进行电磁仿真得到的。对所提出的目标识别算法进行了数学描述,并应用于不同目标的识别。数值验证表明,该算法对主动寻的和混合寻的目标识别都能做出正确的决策。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Radar Target Identification and Tracking Algorithm for Active and Hybrid Homing Missiles
The present paper proposes a new method for the identification of radar targets by active and hybrid homing missiles seeking for fighter jet aircrafts. The proposed procedure depends on the signature formed by the internal resonances of the cavity-backed apertures existing as the air-inlet and exhaust-outlet pipes of the jet engine. These pipes are modeled as open ended conducting cylindrical tubes of practical dimensions with radial conducting blades placed inside the cylindrical cavity. A compressed radar pulse is formed by chirping using linear frequency modulation (LFM) to cover the frequency band 1.0 – 2.0 GHz that is wide enough to distinguish between various targets. The radar cross section (RCS) as a function of the frequency is obtained through electromagnetic simulation using the CST® simulator and employing the pipe model and the pulsed plane wave mentioned above. The proposed target identification algorithm is mathematically described and numerically applied to identify different targets. The numerical examinations show that the proposed algorithm succeeds to take the correct decision regarding the target identification by active and hybrid homing missiles.
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