| 利用双天线相位差的ADS-B欺骗式干扰检测方法 |
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| 引用本文： | 王文益,李文静,卢丹,王璐,贾琼琼,吴仁彪.利用双天线相位差的ADS-B欺骗式干扰检测方法[J].信号处理,2019,35(2):159-167. |
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| 作者姓名： | 王文益 李文静 卢丹 王璐 贾琼琼 吴仁彪 |
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| 作者单位： | 中国民航大学天津市智能信号与图像处理重点实验室 |
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| 基金项目： | 国家重点研发计划（２０１６ＹＦＢ０５０２４０２）；国家自然科学基金委员会资助项目（Ｕ１８３３１１２） |
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| 摘 要： | 广播式自动相关监视技术(Automatic Dependent Surveillance-Broadcast,简称ADS-B)相比于传统监视系统具有定位精度高、更新速率快和设备成本低等优点,受到国际民航组织的大力推广。但由于其共享开放式的特点使得系统容易受到各种欺骗式干扰的影响,严重威胁空中交通安全。本文提出了一种利用双天线相位差进行欺骗式干扰检测的方法:对同一信源广播的一组位置消息,首先根据其广播内容计算一组表征目标相对于接收机方向变化的量;其次根据双天线之间的相位差计算一组同样表征此方向变化的量;最后通过两组变量的相关系数判别真实目标和欺骗干扰。此外,针对与空中真实目标ICAO(International Civil Aviation Organization,简称ICAO)地址相同的虚假ADS-B消息可能导致的误检测,我们也提出了信源一致性检测方法。本文方法不需要估计信号来向,对天线的幅相误差稳健,仿真实验和实测数据均验证了方法的有效性。
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| 关 键 词： | 广播式自动相关监视 欺骗式干扰 双天线 相位差 相关系数 |
| 收稿时间： | 2018-07-31 |
An ADS-B Spoofing Detection Method Based on Double Antenna Phase Difference |
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| WANG Wen-yi,LI Wen-jing,LU Dan,WANG Lu,JIA Qiong-qiong,WU Ren-biao.An ADS-B Spoofing Detection Method Based on Double Antenna Phase Difference[J].Signal Processing,2019,35(2):159-167. |
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| Authors: | WANG Wen-yi LI Wen-jing LU Dan WANG Lu JIA Qiong-qiong WU Ren-biao |
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| Affiliation: | Tianjin Key Laboratory for Advanced Signal Processing, Civil Aviation University of China |
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| Abstract: | Compared with traditional surveillance system, Automatic Dependent Surveillance-Broadcast (ADS-B) system has the advantages of a high positioning accuracy, fast update rate, and low equipment cost, and thus has been vigorously promoted by the International Civil Aviation Organization. But because of its open and sharing features, the system is vulnerable to various spoofing attack which seriously threatens air traffic safety. In this paper, we propose a spoofing attack detection method using phase difference between the double antenna : for a sequence of Airborne Position Message claimed by same source, firstly, we can calculate a group of variables to indicate the directional change based on its broadcast content; secondly, we can use the phase difference to compute another group of variables as the reflection of the directional change; finally, we calculate the Pearson correlation coefficient of the two groups of variables to determine whether the target is a real aircraft or a ghost one. Inaddition, considering the false ADS-B messages that are the same as the airborne real target ICAO addresses may result in false detections, we propose a source consistency detection method. Compared with other methods, this method does not need to estimate the direction of the signal, and it is robust to the amplitude and phase error of the array, and the simulation experiments and practical data have verified the effectiveness of the method. |
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| Keywords: | automatic dependent surveillance-broadcast(ADS-B) spoofing attack double antenna phase difference correlation coefficient |
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