分布式间歇采样转发信号对机载干涉仪参数测量影响分析

王英甫 殷加鹏 卢中昊 庞晨 胡卫东

王英甫, 殷加鹏, 卢中昊, 等. 分布式间歇采样转发信号对机载干涉仪参数测量影响分析[J]. 雷达学报(中英文), 待出版. doi: 10.12000/JR24090
引用本文: 王英甫, 殷加鹏, 卢中昊, 等. 分布式间歇采样转发信号对机载干涉仪参数测量影响分析[J]. 雷达学报(中英文), 待出版. doi: 10.12000/JR24090
WANG Yingfu, YIN Jiapeng, LU Zhonghao, et al. Analysis of the influence of distributed interrupted sampling repeating signals on airborne interferometer parameter measurements[J]. Journal of Radars, in press. doi: 10.12000/JR24090
Citation: WANG Yingfu, YIN Jiapeng, LU Zhonghao, et al. Analysis of the influence of distributed interrupted sampling repeating signals on airborne interferometer parameter measurements[J]. Journal of Radars, in press. doi: 10.12000/JR24090

分布式间歇采样转发信号对机载干涉仪参数测量影响分析

doi: 10.12000/JR24090
基金项目: 国家部委基金
详细信息
    作者简介:

    王英甫,硕士生,主要研究方向为波形对抗技术

    殷加鹏,博士,副研究员,硕士生导师,主要研究方向为极化雷达信号处理、波形对抗技术

    卢中昊,博士,副教授,硕士生导师,主要研究方向为天线及微波器件设计、电磁兼容与电磁防护

    庞 晨,博士,副研究员,硕士生导师,主要研究方向为极化信息处理、雷达目标分辨与识别技术

    胡卫东,博士,教授,博士生导师,主要研究方向为雷达信息处理与目标识别、多源信息融合

    通讯作者:

    殷加鹏 yinjiapeng@nudt.edu.cn

  • 责任主编:崔国龙 Corresponding Editor: CUI Guolong
  • 中图分类号: TN972

Analysis of the Influence of Distributed Interrupted Sampling Repeating Signals on Airborne Interferometer Parameter Measurements

Funds: The National Ministries Foundation
More Information
  • 摘要: 针对反机载干涉仪侦察场景,该文提出一种基于间歇采样转发技术生成分布式信号对干涉仪参数测量施加干扰的方法。辐射源与转发干扰机分布部署构成干扰系统,转发干扰机对辐射源脉冲信号进行间歇采样并向干涉仪转发,转发信号与辐射源信号准同步到达干涉仪,实现对干涉仪空域参数和时域参数的同时干扰。对于机载干涉仪运动过程中与干扰系统发生的位置关系变化,给出信号准同步约束并构建分布式信号叠加模型。然后针对干涉仪体制对脉冲空域和时域参数的测量机理,分析分布式信号实施干扰的原理,并分析信号参数对干扰效果的影响,进而提出分布式信号设计原则。仿真实验和暗室实验结果表明,该文所提出分布式波形可有效扰乱干涉仪对信号到达方位角、脉宽和脉冲重复周期等空时域参数的正确测量。

     

  • 图  1  干涉仪运动过程中辐射源和转发干扰机信号传播路径变化

    Figure  1.  Changes of the signal propagation path of radiation source and jammer during interferometer movement

    图  2  不同转发样式原理示意图

    Figure  2.  Schematic diagram of different repeater styles

    图  3  间歇采样重复转发示意图

    Figure  3.  Schematic of interrupted-sampling repetitive repeater jamming

    图  4  分布式信号叠加示意图

    Figure  4.  Schematic diagram of distributed signals superposition

    图  5  信号相位差、功率比对角度测量影响分析

    Figure  5.  Analysis of phase difference and SIR between two signals

    图  6  信号夹角对角度测量影响分析

    Figure  6.  Analysis of included angle between two signals

    图  7  仿真实验场景图

    Figure  7.  Simulation experiment scene

    图  8  分布式波形特性

    Figure  8.  Properties of distributed signals

    图  9  空域参数干扰仿真

    Figure  9.  Simulation of spatial domain parameter interference

    图  10  间歇采样转发对测脉宽干扰

    Figure  10.  Interference of ISRJ on pulse width measurement

    图  11  测量脉宽统计直方图

    Figure  11.  Histogram of pulse width measurement

    图  12  测量脉冲PRI直方图

    Figure  12.  Difference histogram for PRI measurement

    图  13  暗室实验场景设置

    Figure  13.  Darkroom experiment scene setting

    表  1  辐射源参数

    Table  1.   Parameters of the radiation source

    参数 数值
    发射功率(kW) 200
    工作频率(GHz) 10
    码片宽度(μs) 0.1
    码片个数 64
    脉宽(μs) 6.4
    重复周期(μs) 32
    下载: 导出CSV

    表  2  转发干扰机参数

    Table  2.   Parameters of the transmitter

    参数 数值
    发射功率(kW) 150
    采样长度(μs) 0.8
    重复转发次数 2
    采样次数 4
    下载: 导出CSV

    表  3  干涉仪对不同信号测量结果

    Table  3.   Results of different signals measured by the interferometer

    信号幅度(dBm)到达方位角(°)脉宽(μs)
    单脉冲统计值单脉冲统计值单脉冲统计值
    仅辐射源信号–76.4600–75.739.586239.54.946915.0
    –76.022539.98494.94691
    –75.772539.86604.94691
    –75.772539.47435.06692
    –75.772539.23655.01358
    仅转发信号–72.4600–72.5–22.5355–22.59.9605010.0
    –72.6475–22.619410.02720
    –72.4600–22.598510.01380
    –72.3350–23.03219.97383
    –72.3350–22.668410.00050
    合成信号1–68.6475–68.729.144029.010.347210.0
    –68.647529.255910.2805
    –68.772529.241910.3205
    –68.647529.542710.2538
    –68.835029.360810.0672
    合成信号2–70.3975–70.027.409527.010.413910.0
    –70.335026.346410.1472
    –70.210027.192610.1338
    –70.335026.891910.0538
    –69.960027.150710.0938
    下载: 导出CSV
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  • 收稿日期:  2024-05-16
  • 修回日期:  2024-06-20
  • 网络出版日期:  2024-07-05

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