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基于空间相关的ADS-B 欺骗干扰检测方法

吴仁彪,陈蕾,卢丹   

  1. taptap下载安装安卓天津市智能信号与图像处理重点实验室,天津300300
  • 收稿日期:2018-01-15 修回日期:2018-03-01 出版日期:2018-10-25 发布日期:2018-11-19
  • 作者简介:吴仁彪(1966—),男,湖北黄陂人,教授,博士,研究方向为自适应信号处理、雷达信号处理.
  • 基金资助:
    国家自然科学基金项目(61471363);中央高校基本科研业务费专项(3122017004)

ADS-B spoofing detection method based on spatial correlation

WU Renbiao, CHEN Lei, LU Dan   

  1. Intelligent Signal and Image Processing Key Lab of Tianjin, CAUC, Tianjin 300300, China
  • Received:2018-01-15 Revised:2018-03-01 Online:2018-10-25 Published:2018-11-19

摘要: 随着广播式自动相关监视技术的广泛应用,其安全性问题也引起了高度关注。针对ADS-B 系统容易受到的欺骗式干扰,提出了一种干扰检测方法:该方法首先根据报文内容计算坐标空间中的一组变量,其反映目标相对于接收机的方向变化趋势;其次,根据阵列天线接收的信号计算信号空间中一组同样表征此方向
变化趋势的变量;最后,通过两组变量的皮尔逊相关系数判别真实目标和欺骗干扰。在此基础上,还提出了一种信源一致性检测方法,以降低误检测概率。所提方法无需估计信号来向,对阵列的幅相误差较为稳健,适合工程实践。

关键词: 广播式自动相关监视, 欺骗式干扰, 阵列天线, 相关系数, 幅相误差

Abstract: With the widespread use of ADS-B (automatic dependent surveillance-broadcast), security issues of which have also attracted widespread attention. Aiming at its susceptible deception jamming, a jamming detection method is proposed. Firstly, a group of variables are calculated to indicate the DOA changing trend according to message report. Secondly, with the help of signals received by array antenna, another group of variables are computed as the reflection of DOA changing. Finally, Pearson correlation coefficient of the two sets of variables are employed to distinguish whether the target is a real aircraft or a ghost. On this basis, a source consistency detection method is proposed to decrease the false detection rate. Compared with other methods, the current one shows robustness to the amplitude and phase error of the array without consideration of signal爷s origin, thus is suitable for engineering practice.

Key words: ADS-B, spoofing attack, array antenna, correlation coefficient, gain and phase error

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