国防科技大学学报2016，Vol.38Issue(3)：50-54,5.DOI:10.11887/j.cn.201603009
子空间投影后波束形成的导航接收机抗干扰性能分析
Performance analysis of anti-jamming algorithm in GNSS receiver utilizing subspace projection and beamforming
摘要
Abstract
Considering that the global navigation satellite system signal is buried in the strong interference and thermal noise,a novel anti-jamming scheme which utilizes subspace projection and beamforming method was proposed.The data vector received by antenna array was projected onto the noise subspace which is orthogonal to interference subspace to achieve interference suppression.When the local code was synchronized with the reference antenna jammer-free data,beamforming was performed according to the minimum mean square error criterion.Simulation results show that the proposed method can steer the main beam to the direction of global navigation satellite system signal wave with effective interference suppression,and the output signal-to-noise ratio can be significantly increased while the correlation peak curve and the carrier tracking performance are not corrupted.关键词
抗干扰/子空间投影/波束形成/导航接收机Key words
anti-jamming/subspace projection/beamforming/global navigation satellite system receiver分类
信息技术与安全科学引用本文复制引用
关刚强,聂俊伟,黄仰博,王飞雪..子空间投影后波束形成的导航接收机抗干扰性能分析[J].国防科技大学学报,2016,38(3):50-54,5.基金项目
教育部新世纪人才支持计划资助项目 （）
