With the development of semiconductor components,especially with the appearance of ns and sub-ns impulse technology,more attention has been paid to impulse radar systems.

• 随着半导体器件的发展，特别是纳秒和亚纳秒脉冲关键技术的基本解决，基带雷达体制越来越受到人们的重视，本文将就基带雷达在汽车防撞中的应用加以探讨，并给出一个具体实施方案。