高速目标高分辨雷达信号处理的FPGA设计及实现

Design and Implementation of High-speed Target and HighResolution Radar Signal Processing Based on FPGA

为了满足高速目标高分辨雷达探测系统的大数据量、高精度、复杂算法的实时信号处理要求,提出了一种基于现场可编程门阵列(Field Programmable Gate Array,FPGA)的多通道中频回波信号处理系统,可实现高速目标的速度、角度、距离搜索和跟踪。其中采用系统生成器(System Generator,SysGen)进行了数字下变频模块的设计、实现,简化了设计开发流程,利用高层次综合(High Level Synthesis,HLS)设计方法进行了方位角、俯仰角等模块的开发。测试结果表明:角度搜索、距离搜索、距离跟踪等模块性能均满足设计要求,系统能够实现目标的高精度实时跟踪。

In order to meet the real-time signal processing requirements of large data volume,high precision and complex algorithm of high-speed target high-resolution radar detection system,a multi-channel intermediate frequency(IF)echo signal processing system based on field programmable gate array(FPGA)is proposed,which can realize the velocity,angle,range searching and tracking of high-speed target.While System generator(SysGen)software is adopted for digital down-conversion module designing and implementing,which can simplify the design and development processes.The high level synthesis(HLS)design approach is used to develop the azimuth,pitch modules,etc.As the test outcomes show,the performance of angle,range searching and range tracking modules meets the design demand,and the system can realize high-precision real-time tracking of target.