摘要
目标模拟在雷达的研制和生产中,不仅能加快项目开发的进度,还可降低研制成本。文中研究了基于FPGA实现雷达目标模拟系统的方法,搭建了以Xilinx公司Virtex-6系列芯片为核心的硬件平台。该系统可实时模拟点目标回波,能适应复杂调制波形。此外,文中还结合基于线性调频信号的验证,通过脉冲压缩等方法对系统的性能进行了测试,分析了雷达回波的信息。仿真结果表明,在理论的距离为1 200 m,延迟时间8μs的条件下距离误差仅为11 m,延迟时间误差0.07μs,在本项目允许范围内。系统可较好地实现雷达目标模拟。
Target simulation both speeds up project development and reduces the costs in radar development and production. In this paper,the method of radar target simulation based on FPGA is studied and the hardware platform is built with the Virtex-6 series chips of the Xilinx Company as the core. The system is capable of real-time simulation of the point target echo and adaptation to complex modulation waveforms. System performance is tested by pulse compression methods combing the authentication with chirp signals, and the radar echo information is analyzed.Simulation results show that at a theoretical distance of 1 200 m and a lower latency of 8 μs,the actual distance error is only 11 m with a delay time error of 0. 07 μs,within the allowable range in this project.
出处
《电子科技》
2016年第4期161-164,共4页
Electronic Science and Technology
