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 esti mation,and different service conditions and application scenarios of three algorithms for GNSS receiver are discussed.The perform ance of these algorithms in the multi-interference environment are analyzed through simulation.The results show that all three algo rithms have delivered good anti-jamming performance in the complex interference environment where multiple broadband and narrow band interference coexist and the number of interference signals is greater than that of antenna array elements.
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)
出处
《测绘科学与工程》
2020年第1期26-33,62,共9页
Geomatics Science and Engineering
