带波束指向的GPS抗干扰技术研究  

GPS Anti-jamming Technology Research with Beam Forming

作　　者：董李梅 

机构地区：[1]成都天奥信息科技有限公司,成都610041

出　　处：《导航定位与授时》2016年第2期53-58,共6页Navigation Positioning and Timing

摘　　要：针对GPS卫星接收系统在存在强宽带压制式干扰无法正常工作的情况,研究了基于阵列天线的自适应抗干扰技术。提供了采用约束的最小方差准则实现抗干扰算法,算法充分利用了信号和干扰空间角度的不同进行滤波,对有用信号进行保护,使得波束在指向卫星信号的同时最大程度抑制干扰信号。给出了算法的硬件实现方案,最后通过仿真试验对算法的抗干扰能力进行了分析,验证了算法的有效性。For the case of GPS satellite reception system does not work in the presence of broadband interference, we re- search the adaptive anti-jamming technology based on the array antenna. A constrained minimum variance algorithm is given to suppress the interference. The Algorithm utilizes the difference of angles between signal and interference to filter interfer- ence, so that the beam can point to the satellite signals, protect the useful signals and greatest suppress the interfer- ence. The hardware implementation is given based on the algorithm. Finally, we simulated the algorithm and analyzed it in detail, verified the effectiveness of the algorithm.

关 键 词：GPS 抗干扰 阵列天线 波束 

分 类 号：TN973[电子电信—信号与信息处理]