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隐身飞机自卫干扰对雷达探测性能的影响

刘占强 梁路江 王春阳

刘占强, 梁路江, 王春阳等 . 隐身飞机自卫干扰对雷达探测性能的影响[J]. 北京航空航天大学学报, 2017, 43(12): 2520-2529. doi: 10.13700/j.bh.1001-5965.2016.0876
引用本文: 刘占强, 梁路江, 王春阳等 . 隐身飞机自卫干扰对雷达探测性能的影响[J]. 北京航空航天大学学报, 2017, 43(12): 2520-2529. doi: 10.13700/j.bh.1001-5965.2016.0876
LIU Zhanqiang, LIANG Lujiang, WANG Chunyanget al. Influence of self-defense jamming of stealth aircraft on radar detection performance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(12): 2520-2529. doi: 10.13700/j.bh.1001-5965.2016.0876(in Chinese)
Citation: LIU Zhanqiang, LIANG Lujiang, WANG Chunyanget al. Influence of self-defense jamming of stealth aircraft on radar detection performance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(12): 2520-2529. doi: 10.13700/j.bh.1001-5965.2016.0876(in Chinese)

隐身飞机自卫干扰对雷达探测性能的影响

doi: 10.13700/j.bh.1001-5965.2016.0876
详细信息
    作者简介:

    刘占强 男, 硕士研究生。主要研究方向:隐身目标抗干扰; 梁路江, 男, 硕士, 副教授, 硕士生导师。主要研究方向:干扰与反干扰技术

    王春阳 男, 博士, 教授, 博士生导师。主要研究方向:雷达干扰技术

    通讯作者:

    梁路江, E-mail: 15594999820@qq.com

  • 中图分类号: TN972+.1

Influence of self-defense jamming of stealth aircraft on radar detection performance

More Information
  • 摘要:

    针对雷达探测自卫干扰状态的隐身飞机时,探测性能难以被评估问题,提出了一种基于侧站盘旋航迹的隐身飞机自卫干扰模型。在经过飞机敏感性分析、航迹参数设定和坐标系转换后,对飞机视线姿态角进行了解算,结合飞机全空域的静态RCS数据,仿真计算了时变的动态RCS序列。依据雷达探测距离方程,分析得到了飞机在正常飞行状态和自卫干扰状态的雷达探测范围变化结果;并利用雷达探测概率公式,对飞机在2种状态下的瞬时探测概率进行了比较研究。结果表明:隐身飞机自卫干扰能够缩减探测距离,减小探测概率,降低雷达探测性能,为交战双方积累电子战经验提供了一定的参考价值。

     

  • 图 1  隐身飞机自卫干扰场景

    Figure 1.  Self-defense jamming scenario of stealth aircraft

    图 2  隐身飞机动态RCS仿真流程

    Figure 2.  Simulation process of stealth aircraft dynamic RCS

    图 3  侧站盘旋航迹

    Figure 3.  Spiral flying trajectory

    图 4  隐身飞机受力分析

    Figure 4.  Force analysis of stealth aircraft

    图 5  机体坐标系示意图

    Figure 5.  Schematic of aircraft body coordinate systems

    图 6  坐标系转换示意图

    Figure 6.  Schematic of coordinate system conversion

    图 7  时间序列上视线姿态角的变化

    Figure 7.  Variation of attitude angle to line of sight in time sequence

    图 8  隐身飞机动态RCS序列

    Figure 8.  Dynamic RCS series of stealth aircraft

    图 9  自卫干扰状态下的雷达探测距离范围变化示意图

    Figure 9.  Schematic of radar detection range variation under self-defense jamming condition

    图 10  正常飞行状态下的雷达探测距离范围

    Figure 10.  Radar detection range under normal flight conditions

    图 11  飞机实际距离和干扰烧穿距离的时变情况

    Figure 11.  Time-varying situation of airplane actual range and jamming burnthrough range

    图 12  自卫干扰状态下的雷达探测距离范围

    Figure 12.  Radar detection range under self-defense jamming conditions

    图 13  时间序列上信噪比与信干比的变化

    Figure 13.  Variation of signal to noise ratio and signal to jamming ratio in time sequence

    图 14  雷达瞬时探测概率

    Figure 14.  Instantaneous detection probabilities of radar

    表  1  航迹参数设置

    Table  1.   Trajectory parameter setting

    参数 数值
    巡航速度v/Ma 1.4
    巡航高度H/km 10
    盘旋半径R/km 40
    下载: 导出CSV

    表  2  雷达参数设置

    Table  2.   Radar parameter setting

    参数 数值
    发射功率/kW 100
    发射天线增益/dB 42
    接收天线增益/dB 42
    玻尔兹曼常数/(kg·m2·s-2·K-1) 1.38×10-23
    内部噪声温度/K 290
    接收机带宽/MHz 5
    噪声系数/dB 3
    系统损耗/dB 5
    最小可检测信噪比/dB 20
    下载: 导出CSV

    表  3  干扰设备参数设置

    Table  3.   Jammer equipment parameter setting

    参数 数值
    干扰功率/W 100
    干扰天线增益/dB 10
    干扰频宽/MHz 10
    极化损失 0.5
    干扰设备总耗/dB 4
    雷达接收带宽/MHz 5
    信干比/dB 25
    下载: 导出CSV
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出版历程
  • 收稿日期:  2016-11-15
  • 录用日期:  2017-03-06
  • 刊出日期:  2017-12-20

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