一种基于均匀圆阵的自适应单脉冲测角方法  

An adaptive monopulse angle measurement method for uniform circular array

作　　者：赵英俊[1,2] 李荣锋[1] 王永良[1] 刘维建[1] 

机构地区：[1]空军预警学院兵器运用工程军队重点实验室,武汉430019 [2]海军工程大学电子工程学院,武汉430033

出　　处：《海军工程大学学报》2013年第4期103-107,共5页Journal of Naval University of Engineering

摘　　要：针对均匀圆阵在主瓣干扰背景下测角会造成方位自适应单脉冲比曲线失真的问题,提出了一种基于均匀圆阵的自适应单脉冲测角方法。该方法首先对均匀圆阵进行无约束自适应和波束形成,然后在进行自适应差波束形成之前,对差波束施加单脉冲比约束,以抑制主瓣干扰并保持和差单脉冲比曲线不失真,从而实现对目标方位、俯仰角的估计。研究结果表明:与常规方法相比,该方法能够抑制主瓣干扰,同时可以较好地保证均匀圆阵的测角精度。Based on mainlobe jamming suppression, an angle measurement method for uniform circular array was proposed. First of all, the unconstrained adaptive sum beam was formed. Then, monopulse ratio constraint was imposed, and the adaptive difference beam was formed. This can suppress the mainlobe jamming and keep the curve of the monopulse ratio unchanged, thereby obtaining the angles of the azimuth and elevation. The result shows that the method can suppress the mainlobe jamming and guarantee the precision of measurement angle.

关 键 词：均匀圆阵 单脉冲测角 自适应波束形成 主瓣干扰 

分 类 号：TN957[电子电信—信号与信息处理]