一种单星约束的空时自适应抗干扰算法  

Research on Space-time Adaptive Anti-interference Algorithm of Per-satellite Constraint

作　　者：王晓君[1] 黄玲[1] 包莉娜[1] 

机构地区：[1]河北科技大学信息科学与工程学院,石家庄050000

出　　处：《导航定位学报》2015年第2期57-61,共5页Journal of Navigation and Positioning

摘　　要：针对全球卫星导航系统面临的各种宽带和窄带干扰,单一的空域处理技术不能有效地一起去除的问题,提出了空时自适应滤波算法。该算法通过分析基于线性约束最小方差准则的空时域单星单约束抗干扰算法对卫星信号的影响,论述了在带有圆心和不带圆心的均匀圆阵上应用单星单约束抗干扰算法,Matlab仿真结果表明较少阵元的带圆心阵列可以有效抑制多个宽带干扰和窄带干扰,比基于普通圆阵的单星单约束抗干扰算法更具有效性。For a variety of narrow-band and broad-band jamming was faced by the Global Navigation Satellite System（GNSS）,a single spatial processing technology has not effectively removed them together,the space-time adaptive filtering algorithm is proposed.Through the analysis of the effects on satellite signals between the space-time anti-interference algorithm of per-satellite single-constrainted,which are based on linearly constrained minimum variance criterion,it is investigated that the single-constrainted algorithm was applied on the centered circular array and the no centered circular array.Matlab simulation results show that the anti-interference algorithm of per-satellite single-constrainted can suppress more broad-band and narrowband interferences jointly with less elements existed on the centered circular array,which is more effective than the ordinary circular array.

关 键 词：空时域 抗干扰 单星约束 均匀圆阵 MATLAB仿真 

分 类 号：V417[航空宇航科学与技术—航空宇航推进理论与工程]