关键词: 激光测距, 精度, 相位测量, 反正切

Abstract:

With the advantage of well directional property,good monochromaticity and strong coherence of laser,laser range finder can be used in many fields.Because the measurement of phase difference has high accuracy,it has become the best choice of laser range finder.In this paper,in consideration of the characteristics of laser range finder,several improvements are made for measurement of phase difference.On the premise of ensuring accuracy,the recourse consumption is reduced,so that the laser range finder can have faster response and more resources for function extension.Simulation results verify that the proposed approach achieves desirable results with a flexible program design on requirement of different precisions.

Key words: laser range finder;accuracy;phase detect;anti tangent