摘要
为了应对现代战场电磁环境复杂化对相控阵天线波控系统的实时性挑战,提出了一种基于FPGA架构的改进型波控系统。该方案采用查表与实时计算的混合控制策略,通过分布式解算架构将波控码生成任务分解至多级处理单元,与传统查表方案相比,在保障波束指向精度的同时,FPGA存储需求减少了76.6%。此外,该方案突破传统解算效率瓶颈,与DSP浮点计算方法相比,运算速度相对提升了37.7%,波束重构响应时间缩短至微秒量级。数值仿真和板级联试结果表明,该方案在动态幅相调控中表现出强鲁棒性,其多维度性能指标满足复杂电磁环境下快速波束赋形的工程需求,为相控阵雷达系统优化提供了有效解决方案。
An improved wave-control system based on FPGA architecture is proposed in this paper to cope with the real-time challenge of phased-array antenna wave-control system owing to the complexity of modern battlefield electromagnetic environments.In this scheme,a hybrid control strategy that combined table lookup and real-time calculation was adopted,and the task of wave-control code generation was decomposed into multi-stage-processing units through distributed solution architecture,which ensured beam pointing accuracy and reduced the FPGA requirement by 76.6%compared with the traditional table lookup scheme.In addition,the proposed solution breaks through the bottleneck of traditional solving efficiency,the operation speed is increased by 37.7%compared with the DSP floating-point computing method,and the response time of beam reconstruction is shortened to the order of microseconds.Numerical simulation and plate cascade test results show that the proposed scheme is robust for dynamic amplitude-phase control,and its multidimensional performance index satisfies the engineering requirements of fast beamforming in complex electromagnetic environments,providing an effective solution for phased-array radar system optimization.
作者
李庆洪
黄治磊
杨冬
杨清昆
LI Qinghong;HUANG Zhilei;YANG Dong;YANG Qingkun(The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China;Chongqing University,Chongqing 400044,China)
出处
《压电与声光》
北大核心
2025年第4期802-808,共7页
Piezoelectrics & Acoustooptics
关键词
相控阵天线
波控
FPGA
查表
phased-array antenna
wave control
FPGA
table lookup
作者简介
李庆洪(1971-),男,四川省蓬溪县人,高级工程师。
