Design of Microwave Velocity and Distance Monitor System

Measuring velocity and distance between vehicles is a crucial technology in automotive collision prevention system.It had analysed the system scheme and had studied the principle of the measuring system of FMCW radar.The design method of chief circuits had been given.This system can monitor forward vehicle in a foggy day or at night.Furthermore,it can give the alarm when the velocity and the distance between vehicles reach the edge of security,so some traffic accidents will be avoided.