多目标跟踪及精确制导对雷达波束的快速调度和指向精度都提出了更高的要求,数字波束形成技术能够迅速的将波束对准期望方向,且有较高的指向精度,能够解决上述问题。文中基于FPGA的特点,提出了一种基于FPGA的通用DBF模块,大大节省了工程实现时所需的乘法器,并将该方法扩展到两维阵面的数字波束形成中,实现了上千阵元面阵的数字波束形成,并在工程实际中完成验证。

Multi-target tracking and precise guidance put forward higher requirements for fast beam controlling and pointing accuracy of ra-dar beams. Digital beamforming technology can quickly align the beam with the desired direction and has higher pointing accuracy, which can solve the above problems. Based on the characteristics of FPGA, this paper proposes a general-purpose DBF module based on FPGA, which greatly saves the multiplier required for implementation, and extends the method to two-dimensional array. The digital beam forma-tion of the array is completed and verified.