利用多普勒效应的ADS-B欺骗式干扰检测方法  

ADS-B Spoofing Detection Method Using Doppler Effect

作　　者：陈蕾 吴仁彪[1] 卢丹[1] CHEN Lei;WU Ren-biao;LU Dan(Tianjin Key Laboratory for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,Chin)

机构地区：[1]中国民航大学天津市智能信号与图像处理重点实验室,天津300300

出　　处：《信号处理》2018年第6期722-728,共7页Journal of Signal Processing

基　　金：中央高校基本科研业务费项目(3122017004);国家自然科学基金委员会资助项目(61471363)

摘　　要：广播式自动相关监视(ADS-B)技术是一种空管监视技术,由于其与传统监视技术相比有定位精度高、更新速度快且设备成本低的优点而受到国际民航组织的大力推广。但由于其信道不加密、数据协议公开等特性,使其极易受到各种有意无意的欺骗干扰影响,严重威胁空中交通安全。本文提出了一种综合利用各种类型的ADS-B消息的单天线单个接收机的干扰检测方法:一方面通过接收机解码信息估算出多普勒频率信息,另一方面通过对接收信号进行直接频率估计获得多普勒频率信息,集合同一航迹的各个航迹点,可分别得到一组报告频率和一组估计频率,通过判别两组多普勒频率估值变化是否一致来检测出欺骗干扰。本方法充分利用目标广播的各种类型的消息,提高了检测效率。相比于现有的其他方法,此方法实现成本低,易于工程实现,仿真实验验证了方法的有效性。Automatic Dependent Surveillance-Broadcast（ ADS-B） technology is an air traffic control technology. Compared with the traditional surveillance technology,ADS-B have a higher positioning accuracy,faster update speed and lower cost,thus has been vigorously promoted by the International Civil Aviation Organization（ ICAO）. However,due to its non-encrypted channels and the openness of data protocols,it is vulnerable to all kinds of deception and interference,seriously threatens air traffic safety. This paper presents an interference detection method for single-antenna and single receiver： on the one hand,On the one hand,the Doppler frequency is estimated by the receiver decoding reports; on the other hand,the Doppler frequency information is obtained by direct frequency estimation of the received signal. Collecting each track point of the same track can obtain a set of report frequency and a set of estimated frequency respectively. The deception jamming is detected by judging whether the two sets of Doppler frequency estimates are consistent or not. The method takes full advantage of various types of messages broadcast by the target to improve the detection efficiency. Compared with other existing methods,this method is lower in cost and easier to implement in engineering. Simulation results show the effectiveness of the method.

关 键 词：广播式自动相关监视 欺骗式干扰 单天线 多普勒频率 

分 类 号：TN911.7[电子电信—通信与信息系统]