摘要
随着二维数字阵列阵元数量激增及同时多波束的要求,运算能力成为制约雷达系统设计的瓶颈.为降低数字阵列雷达系统的硬件成本,提出了一种基于锥角坐标系的方位和俯仰解耦合方法;基于现场可编程门阵列(FPGA)器件,给出了数字阵列雷达二维数字接收波束形成的工程实现.该方法利用行列分置的方式将二维数字阵列降维,大大降低了运算量.实验结果验证了本文方法的有效性.
With the increasing number of two-dimensional digital array elements and the requirement of simultaneous multi-beam, computing power has become the bottleneck of radar system design. In order to reduce the hardware cost of digital array radar system, this paper proposes a decoupling method of azimuth and elevation based on conical coordinate system. The paper is also based on field programmable array(FPGA) devices to present the engineering implementation of two-dimensional digital receiving beamforming for digital array radar. This method reduces the dimension of two-dimensional digital array by the way of column and row separation, which greatly reduces the amount of computation. The experimental results verify the effectiveness of the proposed method.
作者
刘颖
崔向阳
LIU Ying;CUI Xiangyang(Xi’an Modern Control Technology Research Institute,Xi’an 710065,China;Xi’an Electronic Engineering Research Institute,Xi’an 710100,China)
出处
《空天预警研究学报》
2022年第4期268-271,共4页
JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH
