相位法激光测距的实现

详细信息

Realization of Laser Range Finding Based on Phase

College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100022, China

摘要: 介绍了相位法激光测距基本原理,详细论述了相位差的自动数字测量方法及其引起的误差.对单次检相的精度、频率漂移、大气折射率等对测距误差的影响进行了分析并提出了具体解决方法.实现结果表明,采用相位法测距精度可以达到±(5 mm+5×10^-6D).
- 激光测距 /
- 相位 /
- 精度
Abstract: The authors introduce the basic principle of laser range finding technology based on phase, propound in detail the automatic digital measurement technique of phase difference and its errors, analyze the effect of single phase-picking precision, frequency drift and atmosphere refractive index, etc. on laser ranging errors and put forward some special improvement methods. The results of laser ranging realization show that adopting phase laser ranging can achieve the precision of ±(5 mm 4+5×10^-6D).
- laser range finding /
- phase /
- accuracy