抗截获物理层安全宽带传输技术研究  

Research on Anti-interception Physical Layer Security Wideband Transmission Technology

作　　者：王馨[1] 陈真 周军[1] 王凯燕[1] WANG Xin;CHEN Zhen;ZHOU Jun;WANG Kaiyan(No.30 Institute of CETC,Chengdu Sichuan 610041,China)

机构地区：[1]中国电子科技集团公司第三十研究所,四川成都610041

出　　处：《通信技术》2021年第10期2403-2412,共10页Communications Technology

摘　　要：随着网电攻击一体化能力的提升,战术无线通信系统的上层通信协议和物理层信号结构与参数等面临着易被攻击、被干扰和被截获等安全威胁。现有的无线通信采用链路层和物理层独立设计方法,通过链路层信息加密、物理层信号抗干扰等措施保障信息安全传输。这种链路层和物理层独立处理架构已不能抵抗敌方强大的截获侦听破译所造成的安全威胁,需要从无线传输的物理层做好信息安全传输的“第一道防线”。因此,以物理层安全和动态可重构波形技术为基础,实现特征动态隐藏安全宽带传输技术,通过多维度的信号捷变,隐藏或减弱信号特征,有效提升信号抗截获与信息抗分析能力,实现通信与安全深度融合,提高战术无线通信系统的安全防护能力。With the improvement of the capabilities of integrated network and electrical attack,the upper layer communication protocol,physical layer signal structure and parameters of tactical wireless communication systems are facing security threats such as easy attack interference and interception.Existing wireless communications adopt independent design methods of link layer and physical layer.The information encryption of link layer and anti-jamming of physical layer are used to ensure the information security transmission.This independent processing architecture of link layer and physical layer can no longer resist the security threat caused by the powerful interception and deciphering of the enemy,and the physical layer of wireless transmission needs to be the"first line of defense"for the secure transmission of information.Therefore,based on the physical layer security and dynamic reconfigurable waveform technology,the feature dynamic hiding secure broadband transmission technology is realized.Through multi-dimensional signal agility,hiding or weakening signal features,effectively improving signal anti-interception and information anti-analysis capabilities,etc.,to achieve deep integration of communication and security,and improve the security protection capabilities of tactical wireless communication systems.

关 键 词：抗截获 物理层安全 动态可重构 特征隐藏 

分 类 号：TN973.2[电子电信—信号与信息处理]