介绍了主动汽车防碰撞FMCW毫米波雷达系统原理，报导了我们研制的SAE-100型毫米波防碰撞雷达样机。-The initiative to introduce anti-collision automotive FMCW millimeter wave radar systems theory, we reported the development of the SAE-100-type millimeter-wave anti-collision radar prototype.