基于超声波倒车雷达的研究

Research Basis on Ultrasonic Reversing Radar System

介绍车用泊车辅助系统——超声波倒车雷达的工作原理及设计架构,通过超声波三角算法探测障碍物距离,为车载超声波雷达大批量推广列装提供设计理论依据,并依据此设计原理延伸出半数字雷达、全数字雷达、无主机雷达等。从雷达系统架构、主机电路设计,传感器驱动电路设计、压电陶瓷超声波驱动及接收设计、运算放大器设计、压电/电磁蜂鸣器驱动设计,声波——距离转换设计等方面详细阐述了超声波雷达的设计方案。

Vehicle parking assistance systems were introduced for the design architecture and working principle of the ultrasonic reversing radar system, detecting obstacle distance by ultrasonic triangle algorithm, designed for mass promotion assembled with onboard ultrasonic radar theory basis,and based on the design principle then extended to half digital radar,digital radar,no host radar system,etc. From radar system architecture,main circuit design,piezoelectric ceramic ultrasonic sensor driver circuit design driver and receiver design, operational amplifier design,piezoelectric/buzzer drive electromagnetic design,sound waves-distance transformation design aspects in detail elaborated the design of ultrasonic wave radar.