汽车防撞雷达中频信号处理系统的优化方案

An Optimization Scheme for IF Signal Processing System of Automotive Anti-collision Radars

中频信号处理装置是汽车防撞雷达系统的核心。针对现有中频信号处理方案中存在的不足,基于对雷达中频信号的调理需求和对模块功能的分析,提出了一种基于多功能可编程集成芯片MAX11043的雷达系统功能的优化方案。基于FPGA技术对集成芯片的驱动进行设计并得到相应的时序仿真图,调用所设计的驱动模块完成对调制信号发生器功能的仿真和实验,仿真和实验结果验证了所提出的优化方案的可行性。

Intermediate frequency（IF） signal processing device is the core of automotive anti-collision radar system. Aiming at the defects of existing IF signal processing scheme,on the basis of analyses on the tuning requirements of IF radar signal and module functions,an optimization scheme for radar system function is proposed,using multi-functional programmable chip MAX11043. Integrated chip drive is designed based on FPGA technique,with the corresponding time sequential simulation chart obtained. Both simulation and experiment are conducted on the functions of modulated signal generator with the designed drive module. The results of simulation and experiment verify the feasibility of the optimization scheme proposed.