系统工程与电子技术

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零陷可控的低旁瓣频率不变宽带波束形成

张书瑞, 马晓峰, 盛卫星, 韩玉兵, 张仁李   

  1. 南京理工大学电子工程与光电技术学院, 江苏  南京 210094
  • 出版日期:2016-05-25 发布日期:2010-01-03

Wideband frequency invariant beamforming with low sidelobes and anti-jamming nulls

ZHANG Shu-rui, MA Xiao-feng, SHENG Wei-xing, HAN Yu-bing, ZHANG Ren-li   

  1. School of Electronic and Optical Engineering,Nanjing University of Science & Technology, Nanjing 210094, China
  • Online:2016-05-25 Published:2010-01-03

摘要:

在基本的傅里叶变换频率不变波束形成器(frequency invariant beamforming, FIB)的基础上,提出了快速可控零陷低旁瓣宽带FIB优化方法,该方法将固定角度方向图零陷约束和等波纹原型滤波器加入FIB的设计,实现了零陷可控的低旁瓣FIB。同时,还开展了FIB抽头系数的稀疏优化,有效的降低了算法实现的运算量。仿真结果验证了所提的方法在一维均匀线阵和二维均匀面阵上的正确性和有效性。

Abstract:

The constraints of pattern nulling and the prototype equiripple finite impulse response (FIR) are respectively added to the original fourier transform frequency invariant beamforming (FIB) to obtain pattern of wideband FIB with low sidelobe and anti-jamming nulling. The thinned optimization of FIB coefficients is also considered to reduce the calculating complex. The simulation results verify the correctness and effectiveness of the proposed method.