文档介绍：GNSS接收机抗干扰和欺骗检测技术研究程旭维,汤霞清,郭理彬,武萌(控制工程系,装甲兵工程学院,北京,中国,100072) 1. chengxuwei0872@ 【摘要】以转发或再生假冒定位信息和授时服务为主的欺骗式干扰正在成为GNSS的重要威胁,这种欺骗信号能够阻塞目标导航系统或诱导系统得出错误的定位结果,比通常的干扰更具危险性且不易被发现。因此,通过比对干扰和欺骗信号的特征,本文首先详细分析了单个GNSS接收机的易受干扰性,然后总结了几种通用的欺骗信号检测方法,重点分析了不更改接收器的软件处理方法。最后提出了一种基于检测相关峰功率绝对值的分辨真实信号和欺骗信号的方法,该方法主要在信号捕获阶段检测C/N0无效时作用明显,试验和分析评估验证了该检测方法的有效性和可行性。【关键词】GNSS接收机;抗干扰;检测;功率分析Research on GNSS Receiver Spoofing Detection Technology Xuwei Cheng1, Xiaqing Tang, Libin Guo, Meng Wu 1. Department of Control Engineer, Academy of Armored Force Engineering, Beijing 100072, China 1. e-mail: chengxuwei0872@ Abstract. Spoofing and jamming in the form of transmitting counterfeit location information and denying services are an emerging threat to GNSS receivers. Spoofing is a deliberate attack that aims to coerce victim receivers into conducing false navigation solutions, such attack is potentially more hazardous than jamming since the target receiver is not aware of threat and still providing position/navigation solutions seemed nothing happened. So, after examining the characteristics of spoofing & jamming, this paper firstly investigated the vulnerability of a single GNSS receiver to a spoof attack in detail. Then in general view, the methods for anti-spoof have been presented, which used the intermediate signals to detect the presence of a spoof attack. Much emphasis particularly has been paid on those