摘要
广播式自动相关监视(ADS-B)技术因明码广播特点,面临较严重的电子欺骗风险。针对延迟转发电文的检测与相应干扰台定位问题,根据ADS-B地面站接收电文的位置间隔的分布特点,该文提出利用顺序电文间瞬时速度与关注期内平均速度间的差异性检测延迟转发电文的方法。根据延迟转发电文的原始电文位置与干扰台间的空间关系,利用ADS-B地面站获取的延迟转发电文位置及时间戳,采用多点定位技术实现对干扰台定位。仿真结果表明,利用瞬时速度与平均速度间的差异性可以有效地实现对延迟转发电文存在与否的检测,干扰台的定位精度与ADS-B地面站的定时精度、采用定位的电文数目、干扰台与航线间距离和干扰台方位等因素有关,且采用正视区域的位置电文可以获得对干扰台较好的定位性能。该文方法可以使ADS-B地面站独立地检测延迟转发干扰和定位相应干扰台。
Automatic Dependent Surveillance-Broadcast(ADS-B)technology is faces serious security risk of spoofing due to the characteristics of broadcasting the clear text.In view of the detection of delay-forwarding messages and the positioning of corresponding jammers,according to the distribution characteristics of the interval between radiation positions of messages received by ADS-B ground station,a method is proposed for detecting delay-forwarding messages by using the difference between the instantaneous velocity of sequential messages and the average velocity of interest of period.According to the spatial relationship between the positions of the original messages of those delay-forwarding messages and the jammer,the positions of the delay-forwarding messages received by ADS-B ground station and their received time stamps are used to locate the position of jammer with the multilateration technique.The simulation results show that the difference between the instantaneous velocity and the average velocity can effectively detect the presence or absence of delay-forwarding messages,the positioning accuracy of jammer is related to the timing accuracy of ADS-B ground station,the number of messages used for positioning,the distance between jammer and track and the azimuth of jammer.The better positioning performance of jammer can be obtained by using the message positions in side-looking area.The proposed method can help the ADS-B ground station independently to detect the delay forwarding interference and to locate the corresponding jammer.
作者
苏志刚
关静
郝敬堂
韩冰
周隽
SU Zhigang;GUAN Jing;HAO Jingtang;HAN Bing;ZHOU Jun(Sino-European Institute of Aviation Engineering,Civil Aviation University of China,Tianjin 300300,China)
出处
《电子与信息学报》
EI
CSCD
北大核心
2021年第2期329-334,共6页
Journal of Electronics & Information Technology
基金
天津市自然科学基金(17JCYBJC43100)
中央高校基本科研业务费项目(3122016U007)。
关键词
监视技术
广播式自动相关监视
电子欺骗
延迟转发电文
多点定位技术
Surveillance technology
Automatic Dependent Surveillance-Broadcast(ADS-B)
Spoofing
Delayforwarding message
Multilateration
