阵列抗干扰高精度“北斗”接收机设计  

Design of a High Precision Beidou Receiverwith Anti-jamming Antenna Array

作　　者：安毅[1] 康荣雷[1] 班亚龙 杨少帅 吴麒[1] AN Yi;KANG Ronglei;BAN Yalong;YANG Shaoshuai;WU Qi(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2022年第11期1572-1579,共8页Telecommunication Engineering

基　　金：四川省科技厅高新技术领域重点研发计划项目(2021YFG0155);中国西南电子技术研究所技术创新基金资助项目(H21004.2)。

摘　　要：为了解决在干扰环境下并行实现阵列天线抗干扰和高精度载波相位差分定位的问题,设计了一款阵列抗干扰高精度“北斗”接收机,重点突破了稳相数字波束形成技术、阵列天线校准技术、射频前端通道校准技术,有效解决了由于波束形成算法、天线阵面幅相差异以及射频通道幅相差异引起的载波相位中心跳变问题。通过外场试验验证,所研制的阵列抗干扰高精度“北斗”接收机可在干信比80 dB的条件下完成高精度载波相位差分相对定位,定位精度优于2 cm。In order to solve the simultaneous realization of anti-jamming antenna array and high-precision carrier phase difference positioning,a high precision Beidou receiver with anti-jamming antenna array is developed.The influence of digital beamforming algorithm,array amplitude-phase error and radio frequency(RF)channel amplitude-phase error on the phase center offset of antenna array can be compensated by digital beamforming algorithm,antenna array calibration algorithm and RF channel calibration algorithm.The field test results show that the developed high precision Beidou receiver with anti-jamming antenna array can meet the requirement of high-precision carrier phase difference positioning under jamming,and the jamming to signal ratio is more than 80 dB and positioning accuracy is better than 2 cm.

关 键 词：“北斗”接收机 阵列天线 抗干扰 高精度 载波相位 

分 类 号：TN965[电子电信—信号与信息处理]