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同步式GPS欺骗干扰信号生成技术研究与设计

柳亚川 寇艳红

柳亚川, 寇艳红. 同步式GPS欺骗干扰信号生成技术研究与设计[J]. 北京航空航天大学学报, 2020, 46(4): 814-821. doi: 10.13700/j.bh.1001-5965.2019.0303
引用本文: 柳亚川, 寇艳红. 同步式GPS欺骗干扰信号生成技术研究与设计[J]. 北京航空航天大学学报, 2020, 46(4): 814-821. doi: 10.13700/j.bh.1001-5965.2019.0303
LIU Yachuan, KOU Yanhong. Research and design of synchronous GPS spoofing signal generation technology[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(4): 814-821. doi: 10.13700/j.bh.1001-5965.2019.0303(in Chinese)
Citation: LIU Yachuan, KOU Yanhong. Research and design of synchronous GPS spoofing signal generation technology[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(4): 814-821. doi: 10.13700/j.bh.1001-5965.2019.0303(in Chinese)

同步式GPS欺骗干扰信号生成技术研究与设计

doi: 10.13700/j.bh.1001-5965.2019.0303
详细信息
    作者简介:

    柳亚川  男, 硕士研究生。主要研究方向:卫星导航

    寇艳红  女, 博士, 副教授, 硕士生导师。主要研究方向:卫星导航、无线通信、数字信号处理

    通讯作者:

    寇艳红, E-mail: kouy@buaa.edu.cn

  • 中图分类号: V249;TN972+.3

Research and design of synchronous GPS spoofing signal generation technology

More Information
  • 摘要:

    出于对"低、慢、小"无人机进行导航定位诱骗的实际需求,在实验室原有的异步生成式GPS欺骗干扰源的基础上,研制了一种小型化的同步生成式GPS欺骗干扰源。首先,在异步生成式GPS欺骗干扰源射频信号模型的基础上,考虑到干扰源信号处理延时、欺骗信号的传播延时、无人机上目标接收机所接收真实卫星信号状态以及无人机运动模型,建立了对同步欺骗信号仿真时间和状态参数进行精确计算的数学模型。其次,通过本地授时型接收机提供驯服后的基准时钟和秒脉冲(1PPS)信号,实现欺骗干扰信号与真实卫星信号系统时的同步,并通过高阶直接数字频率合成(DDS)技术精确控制信号参数、保证欺骗信号到达目标接收机接收天线相位中心时与真实信号的相位状态在成功诱骗所允许的误差范围之内。最后,通过商用接收机和无人机进行了实验验证,在无人机上目标接收机正常跟踪真实卫星信号的前提下,开启同步生成式GPS欺骗干扰源发射欺骗信号,能够使目标接收机逐渐偏离正常定位测速结果而产生受控的定位测速结果。结果验证了同步信号模型和所设计同步信号生成电路的正确性,且表明同步生成式GPS欺骗干扰源能够实现对商用接收机和无人机导航定位的诱骗。

     

  • 图 1  同步生成式GPS欺骗干扰源组成框图

    Figure 1.  Block diagram of synchronous generator GPS spoofer

    图 2  功率计算示意图

    Figure 2.  Schematic diagram of power calculation

    图 3  码相位计算示意图

    Figure 3.  Schematic diagram of code phase calculation

    图 4  欺骗信号俘获跟踪环路示意图

    Figure 4.  Schematic diagram of tracking loop captured by spoofing signal

    图 5  秒脉冲误差测试结果

    Figure 5.  Test results of 1PPS error

    图 6  载噪比测试结果

    Figure 6.  Test results of carrier to noise ratio

    图 7  接收机定位测速结果与预设轨迹速度的比较

    Figure 7.  Comparison of receiver position and velocity results with preset trajectory and velocity

    图 8  DJI Assistant 2所显示无人机偏离起始点的距离

    Figure 8.  Distance of UAV deviated from origin displayed by DJI Assistant 2

    图 9  轨迹和偏离起始点的距离

    Figure 9.  Trajectory and distance deviated from origin

    图 10  无人机外场实验设备及环境

    Figure 10.  UAV field experimental equipment and environment

    图 11  无人机动态诱骗实验场景

    Figure 11.  Dynamic experimental scenario of UAV spoofing

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  • 被引次数: 0
出版历程
  • 收稿日期:  2019-06-17
  • 录用日期:  2019-11-17
  • 刊出日期:  2020-04-20

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