摘要
当存在主瓣干扰的情况下,采用常规的自适应波束形成技术会使单脉冲曲线严重失真,从而导致无法对感兴趣的目标正常测角及跟踪。为了在抑制主瓣干扰的同时能基本保持自适应单脉冲比曲线不失真,提出了一种基于多点约束的自适应单脉冲测角方法,该方法采用约束自适应波束形成技术,即在自适应抑制干扰的同时选取多个约束点对用于测角的单脉冲比进行约束,从而大大提高了存在主瓣干扰下单脉冲测角的性能。计算机仿真实验证明了该方法的有效性。
The conventional adaptive beamforming leads to a serious distortion of monopulse ratio curve in the presence of mainlobe jamming,which results in a failure of angle estimation and tracking of a target.A multipoint constraint adaptive monopulse algorithm is presented in this paper.This adaptive beamforming approach is capable of suppressing mainlobe jamming while maintaining monopulse ratio undistorted,which greatly improves the performance of angle estimation.The simulation proves the validity of the proposed method.
出处
《雷达科学与技术》
2011年第3期232-236,共5页
Radar Science and Technology
关键词
多点约束
单脉冲测角
主瓣干扰
自适应波束形成
multipoint constraint
monopulse estimation
mainlobe jamming
adaptive beamforming
