基于开/闭环交替的GNSS/INS一致性欺骗检测技术  

Consistency deception detection technique for GNSS/INS based on open-closed-loop alternation

作　　者：程予洋 彭新智 封帆 徐奕禹 袁雪林 朱祥维 CHENG Yuyang;PENG Xinzhi;FENG Fan;XU Yiyu;YUAN Xuelin;ZHU Xiangwei(School of Electronics and Information Technology,Sun Yat-Sen University,Shenzhen 518107,China)

机构地区：[1]中山大学电子与通信工程学院,广东深圳518107

出　　处：《全球定位系统》2024年第4期48-55,65,共9页Gnss World of China

摘　　要：GNSS与惯性导航系统(inertial navigation system,INS)在车辆、无人机等领域广泛应用,但GNSS接收机容易受到欺骗信号影响,因此本文提出一种利用INS观测量的一致性欺骗检测技术.惯性器件有着不易受欺骗信号干扰和易产生累计误差的特性,通过开/闭环交替反馈估计误差来构建GNSS/INS组合导航,在开环期间设置欺骗检测窗口,将惯性器件和GNSS得到的加速度、角速度统计检测量进行一致性检测,判断是否存在欺骗.实验结果证明:当窗口时间为70 s时,检测概率达到99.2%,虚警概率为5.2%.The Global Navigation Satellite System(GNSS)and inertial navigation system(INS)are widely used in fields such as vehicles and drones.However,GNSS receivers are susceptible to deceptive signals.Therefore,this paper proposes a consistency deception detection technique using INS observations.Inertial devices have the characteristics of being less susceptible to deceptive signal interference and prone to cumulative errors.By alternately feeding back estimated errors in an open-closed loop manner,a GNSS/INS integrated navigation system is constructed.During the open-loop period,a deception detection window is established,and the consistency between the statistical detection measurements of the inertial device,acceleration,and angular velocity obtained from GNSS is evaluated to determine the presence of deception.Experimental results demonstrate that with a window time of 70 s,the detection probability reaches 99.2%while the false alarm probability is 5.2%.

关 键 词：惯性导航系统(INS) 卫星导航 欺骗检测 一致性检测 开闭环 

分 类 号：P228.4[天文地球—大地测量学与测量工程]