对自适应空域滤波的干扰研究  

Study on jamming adaptive spatial filtering

作　　者：朱峰[1] 张友益 

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003 [2]中船重工集团七二三研究所,江苏扬州225001

出　　处：《现代电子技术》2013年第11期67-69,74,共4页Modern Electronics Technique

摘　　要：自适应空域滤波通过波束控制,能有效地抑制空间干扰、增强有用信号。但在相干干扰环境中,其接收性能大大下降。从理论上推导了相干干扰能使信号源数估计成功概率下降、波达方向估计出现偏差、波束形成性能降低,并通过仿真实验进行了验证。Through beam control, adaptive spatial filtering can restrain spatial jamming and strengthen available singal ef- fectively in normal situation, but its receiving performance decreased greatly under the condition of coherent jamming. The phe- nomena that the coherent jamming has functions of reducing the correct probability of signal number estimation and direction-of- arrival estimation, as well as the degrading the beam forming, are deduced in theory. The simulation results demonstrate that the theory is true.

关 键 词：自适应空域滤波 相干干扰 信号源数 波达方向 

分 类 号：TN911.734[电子电信—通信与信息系统]