摘要
针对自适应波束形成(adaptive beamforming,ADBF)技术抗主副瓣干扰存在天线方向图主瓣分裂进而影响测角性能的问题,提出了一种特征投影预处理(eigen-projection preprocessing,EPB)结合自适应波束形成的抗主副瓣干扰算法。首先利用特征投影预处理剔除主瓣干扰,再利用ADBF技术抑制副瓣干扰,达到剔除主瓣干扰(期望方向除外)、主瓣保形并抑制副瓣干扰的效果。仿真结果验证了该算法具备抗主副瓣干扰的能力,且不影响测角性能。
An anti-interference algorithm combining eigen-projection preprocessing(EPB)with adaptive beamforming(ADBF)technology was proposed to suppress both mainlobe and sidelobe interference,specifically addressing the issue of antenna pattern mainlobe distortion that impacted angle measurement performance.The proposed algorithm firstly employed the eigen-projection preprocessing method to eliminate mainlobe interference,subsequently suppressed sidelobe interference utilizing ADBF.This approach achieved the desired effect of removing mainlobe interference(excluding the intended direction)while preserving the mainlobe shape and concurrently suppressing the sidelobe interference.Simulation results validate that the algorithm has the ability to suppress both mainlobe and sidelobe interference without compromising the angle measurement performance.
作者
赵嘉斐
蒋荣堃
李然
孙慧
ZHAO Jiafei;JIANG Rongkun;LI Ran;SUN Hui(Beijing Institute of Remote Sensing Equipment,Beijing 100854,China;Beijing Institute of Technology,Beijing 100081,China)
出处
《制导与引信》
2025年第1期9-14,23,共7页
Guidance & Fuze
关键词
主副瓣干扰
特征投影预处理
自适应波束形成
主瓣保形
mainlobe and sidelobe interference
eigen-projection preprocessing(EPB)
adaptive beamforming(ADBF)
mainlobe shape-preserving
