【摘要】 针对在没有水下弹道测量系统配合的水域利用实孔径成像声呐测量高速小目标末弹道应用背景,成像声呐需要低旁瓣波束形成,本文提出一种基于Dolph-Chebyshev加权的波束形成方法,给出该波束形成方法的阵列设计约束条件和权值计算方法,通过Matlab仿真实验定量分析几种常规波束形成方法的性能,证明该方法相对于其他常规圆阵波束形成方法的优势,以期供相关声呐波束形成设计参考。更多还原

【Abstract】 Aiming at the application background of using real-aperture imaging sonar to measure high-speed small target terminal trajectory in waters without underwater ballistic measurement system, imaging sonar needs low sidelobe beamforming. A Dolph-Chebyshev weighted beamforming method is proposed in this paper, and the array design of the beamforming method is given. The performance of several conventional beamforming methods is quantitatively analyzed by MATLAB simulation experiments, and the advantages of this method over other conventional circular array beamforming methods are proved, so as to provide reference for the design of related sonar beamforming.更多还原