摘要
针对导航对抗环境下干扰源等难以检测和排查的问题,给出了卫星导航干扰源空地协同测向定位系统设计方案和干扰源查找流程,对该系统采用的空间谱估计和相关干涉仪结合的多干扰源测向技术进行了仿真分析,对该系统进行了实际的测试验证.测试结果表明:车载干扰测向定位系统可同时测向的同频多干扰源数量为4个,测向均方根误差(RMSE)精度为1.4°,系统定位精度为5%,在R以内(R为干扰源与检测点之间的距离),可以满足实际使用需求.
Aiming at the problems that are difficult to detect and find in the navigation countermeasures environment, this paper presents the design scheme and interference source search process of the satellite navigation interference source air-ground cooperative direction finding and positioning system, and conducts simulation analysis on the interference detection technology used in the system, improved spatial spectrum estimation and multi-interference source direction finding technology combined with correlation interferometer. The system is tested and verified in practice. The actual test results show that the system can simultaneously detect the number of multiple interference sources of the same frequency is 4, the direction finding accuracy is 1.4 degrees(root mean square error), the system positioning accuracy is less than 5%R(R is the distance between the interference source and the monitoring point), can meet the actual use requirements.
作者
殷赞
甄卫民
靳睿敏
林子扬
王润梓
车磊
YIN Zan;ZHEN Weimin;JIN Ruimin;LIN Ziyang;WANG Runzi;CHE Lei(China Research Institute of Radiowave propagation,Qingdao 266107,China;Xidian University,Xi’an 710071,China)
出处
《全球定位系统》
CSCD
2023年第1期111-116,共6页
Gnss World of China
关键词
卫星导航干扰源
空地协同
干扰检测
干扰测向
干扰定位
interference source for satellite navigation
air-ground coordination
interference detection
interference direction finding
interference location
