摘要
为提升主瓣干扰下雷达作战效能,提出了一种基于原子重构的雷达抗主瓣干扰方法,可有效抑制主瓣干扰,同时具有较高的目标距离和角度估计精度.首先采用特征投影预处理(EMP)算法抑制主瓣干扰,进而通过波束形成和脉冲压缩估计目标距离,然后利用原子重构法估计目标角度.该方法对雷达阵列结构要求不高,既可适用于线阵,也可适用于面阵.当目标方位角(或俯仰角)等于干扰方位角(或俯仰角)时,该方法仍然能同时有效地估计目标方位角和俯仰角.
In order to improve the radar combat capability in the case of main lobe jamming,this paper proposes an atom-reconstruction-based radar main lobe jamming(MLJ)suppression method.This method can suppress the MLJ and simultaneously provide relatively higher estimation accuracy of the target range and angle.First,eigen-projection matrix preprocessing(EMP)algorithm is used for the MLJ suppression,and then the target range is estimated by beamforming and pulse compression.Finally,the atom-reconstruction method is used to estimate the target angle.This method has no high requirement for radar array structure,applicable to both linear and planar arrays.When the target azimuth(or elevation)equals the jamming azimuth(or elevation),the proposed method can effectively estimate both the target azimuth and elevation simultaneously.
作者
胡敏
李荣锋
周必雷
HU Min;LI Rongfeng;ZHOU Bilei(Aerospace Nanhu Electronic Information Technology Co.,Ltd.,Jingzhou 434000,China;Air Force EarlyWarning Academy,Wuhan 430019,China)
出处
《空军预警学院学报》
2020年第6期402-407,共6页
Journal of Air Force Early Warning Academy
基金
国家自然科学基金资助项目(61501505)。
关键词
雷达
主瓣干扰
抗干扰
原子重构
radar
main lobe jamming
anti-jamming
atom-reconstruction
