线阵激光雷达同步扫描系统的设计

Design of Laser-Synchronized Scanning System for Linear Array LiDAR

为了实现线阵激光雷达的同步动态扫描,提出了一种对PIN光电二极管的输出基准信号进行电平转换驱动旋转平台,从而对三维景物实现推扫的实现方法。介绍了系统的硬件组成,设计了电平转换驱动电路,阐述了同步扫描系统的原理。实验表明,系统的结构紧凑,运行可靠,能在整个圆周范围内进行扫描,测量的精度高达0.000 312 5°/s。

Aiming at dynamic scanning for linear array LiDAR,a new method was proposed to scan 3D target in which signal from PIN diode was transformed to drive a turntable. Hardware involved in this system was introduced while level-translator circuit was designed.Besides,how the laser-synchronized system works was summarized. Ex-periment shows that it is compact and runs fluently in circle with an accuracy up to 0.000 312 5.