针对水下鱼雷自导接收系统中宽带波束形成存在的问题，采用高精度分数延迟器设计实现了一种精确时延宽带数字波束形成器，理论分析了该波束形成器的原理、特点和优势；仿真验证了该波束形成器的有效性和优越性，并与传统方式进行仿真对比。在 Virtex-7 FPGA 平台上的设计实现展示了该波束形成器的实现效率及实用性，利用System Generator编译开发板上的电路，完成了精确波束形成实现方法验证，并生成图表。结果表明所设计的精确波束形成器能够顺利运行，并且达到所需设计目标。
Aiming at the problems of broadband beamforming in underwater torpedo homing receiving system, a precise delay broadband digital beamformer is designed and implemented by using high-precision fractional retarder. The principle, characteristics and advantages of the beamformer are analyzed theoretically. The effectiveness and superiority of the beamformer are verified by simulation, and compared with the traditional method. The design and Implementation on virtex-7 FPGA platform shows the implementation efficiency and practicability of the beamformer. The circuit on the development board is compiled by system generator, the implementation method verification of accurate beamforming is completed, and the chart is generated. The results show that the designed accurate beamformer can run smoothly and achieve the required design objectives.
2022,44(5): 109-113 收稿日期：2021-07-30
DOI：10.3404/j.issn.1672-7649.2022.05.022
分类号：U666
作者简介：靳铠源(1997-)，男，硕士研究生，研究方向为基于FGPA的自导信号处理
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