三种GNSS接收机全局最优空时抗干扰算法性能分析  

Performance analysis of three global optimum spatial-temporal anti-jamming algorithms for GNSS receivers

作　　者：桑怀胜 徐赞 刘魁星 高帅 SANG Huaisheng;XU Yun;LIU Kuixing;GAO Shuai(Beijing Satellite Navigation Center,Beijing 100094,China)

机构地区：[1]北京卫星导航中心,北京100094

出　　处：《测绘科学与工程》2020年第1期26-33,62,共9页Geomatics Science and Engineering

摘　　要：GNSS接收机的军事应用必须适应强干扰环境。基于全局最优空时抗干扰接收机方案,提出了利用解扩一再扩频处理和基于DOA估计的两种全局最优空时抗干扰新算法,讨论了三种GNSS接收机全局最优空时抗干扰算法的不同使用条件和应用场景,仿真分析了三种GNSS接收机全局最优空时抗干扰算法在多干扰信号环境下的性能。仿真结果表明,在多个宽带和窄带干扰并存、干扰信号个数大于天线阵元个数的复杂干扰环境下,三种抗干扰算法均能达到综合较优的抗干扰性能。GNSS receivers used in military equipment should have strong anti-jamming capability.Based on the global optimum spatial-temporal anti-jamming scheme,two new such algorithms are presented,namely despread-respread processing and DOA estimation,and different service conditions and application scenarios of three algorithms for GNSS receiver are discussed.The performance of these algorithms in the multi-interference environment are analyzed through simulation.The results show that all three algorithms have delivered good anti-jamming performance in the complex interference environment where multiple broadband and narrowband interference coexist and the number of interference signals is greater than that of antenna array elements.

关 键 词：GNSS接收机 全局最优 空时抗干扰 解扩一再扩频 DOA估计 

分 类 号：P288[天文地球—地图制图学与地理信息工程]