脉冲激光测距中基于全波形的时刻鉴别方法

In order to solve the accuracy problem of the laser radar ranging system, a new method of time identification based on full waveform sampling is proposed. The method simulates the rising edge function model of the echo waveform by real-time sampling of the laser echo, and combines the constant ratio method to identify the true arrival time to achieve accurate echo identification without amplitude attenuation. Based on this, a pulsed laser ranging system based on full waveform time identification method is designed.The experimental results show that the full-waveform time identification method can control the ranging error to about ±2cm, which solves the bottleneck problem that the time discrimination error limits the accuracy of ranging.