precision of laser ranging

Round trip time of a laser pulse from the emitter to the object is used in pulse laser ranging. Because of the high speed of light the key to improve the ranging precision is the timing precision improvement.

激光脉冲测距是通过测量激光束在待测距离上往返传播的时间来计算出距离的，由于光速极快，提高测距精度的关键就是计时精度。

Design& Implementation of All-Digital High Precision Laser Ranging System

全数字高精度激光测距系统的设计与实现

Ranging techniques of pulsed semiconductor laser are mainly introduced in the paper. Without using non-cooperative objects, the measurement of distance can be from several meters to several kilometers and the precision of measurement could be reach ± 0. 5 meters.

本文主要介绍了脉冲半导体激光测距技术，在非合作目标情况下，测量距离从几米到几公里，测量精度为±0.5m的研究与发展状况。