基于阵列天线信号处理的防欺骗技术  

Anti-spoofing technology based on array antenna signal processing

作　　者：卢建军 彭新智 封帆 黄楚涵 袁雪林 朱祥维 LU Jianjun;PENG Xinzhi;FENG Fan;HUANG Chuhan;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75-85,共11页Gnss World of China

摘　　要：GNSS在国家基础设施以及生命安全应用中扮演重要角色,但日益增长的欺骗干扰事件给GNSS带来了巨大威胁.本文介绍了基于阵列天线信号处理的防欺骗技术,根据阵列构型的不同,从均匀阵列和稀疏阵列两个方面总结了欺骗干扰检测与欺骗干扰抑制方法.其中稀疏阵列相较均匀阵列,在相同天线阵元数的情况下,拥有更大的阵列孔径及自由度,极大地降低了设备成本,但其对相干信号处理技术要求更高.最后本文给出了防欺骗干扰技术面临的难题以及其未来的发展趋势.Global navigation satellite systems play an important role in national infrastructure as well as life safety applications,but the increasing spoofing incidents pose a great threat to GNSS.This paper introduces the anti-spoofing technology based on array antenna signal processing,and summarizes the spoofing interference detection and spoofing interference suppression methods from both uniform and sparse arrays according to the different array configurations.Compared with uniform array,sparse array has larger array aperture and degree of freedom under the same number of antenna elements,which greatly reduces the cost of equipment,but its coherent signal processing technology requires more.Finally,this paper gives the difficulties faced by the anti-spoofing interference technology and its future development trend.

关 键 词：欺骗干扰 稀疏阵列 波达方向估计 子空间投影 波束成形 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TN911.7[天文地球—测绘科学与技术] TN967.1[电子电信—通信与信息系统]