超声波测距，准确测距，最大距离是30厘米，可以精确到毫米-Ultrasonic ranging, accurate distance measurement, the maximum distance is 30 cm, can be accurate to the millimeter

Design and Modeling of Millimeter-Wave CMOS Circuits for Wireless Transceivers

智能小车中用于避障，行进过程中，测定障碍物距离能精确到毫米左右。并将测量值实时送到LCD显示-Smart car for obstacle avoidance in the process of moving, Determination of obstacle distance accurate to the millimeter. And the measured values ​ ​ in real-time to the LCD display

使用CAN读取毫米波雷达数据，编写语言为C(Reading millimeter wave radar data using CAN)