Beidou receiver based on anti-jamming antenna arrays with self-calibration for precise relative positioning  

作　　者：AN Yi KANG Ronglei BAN Yalong YANG Shaoshuai 

机构地区：[1]The 10th Research Institute,China Electronics Technology Group Corporation,Chengdu 610036,China

出　　处：《Journal of Systems Engineering and Electronics》2024年第5期1132-1147,共16页系统工程与电子技术（英文版）

基　　金：supported by the Key Research and Development Program of Science&Technology Department of Sichuan Province(2021YFG0155);the Technical Innovation Fund of Southwest China Institute of Electronic Technology(H21004.2).

摘　　要：Unmanned aerial vehicles(UAVs)may be subjected to unintentional radio frequency interference(RFI)or hostile jamming attack which will lead to fail to track global navigation satellite system(GNSS)signals.Therefore,the simultaneous realization of anti-jamming and high-precision carrier phase difference positioning becomes a dilemmatic problem.In this paper,a distortionless phase digital beamforming(DBF)algorithm with self-calibration antenna arrays is proposed,which enables to obtain distortionless carrier phase while suppressing jamming.Additionally,architecture of high precision Beidou receiver based on anti-jamming antenna arrays is proposed.Finally,the performance of the algorithm is evaluated,including antenna calibration accuracy,carrier phase distortionless accuracy,and carrier phase measurement accuracy without jamming.Meanwhile,the maximal jamming to signal ratio(JSR)and real time kinematic(RTK)positioning accuracy under wideband jamming are also investigated.The experimental results based on the real-life Beidou signals show that the proposed method has an excellent performance for precise relative positioning under jamming when compared with other anti-jamming methods.

关 键 词：Beidou receiver antenna array ANTI-JAMMING high precision distortionless carrier phase 

分 类 号：V279[航空宇航科学与技术—飞行器设计] V249.3[电子电信—信号与信息处理] TN967.1[电子电信—信息与通信工程]