A Simple Self-calibration Method for The Internal Time Synchronization of MEMS LiDAR
This method addresses time synchronization issues in MEMS LiDAR development, enabling faster calibration without external equipment, but it is incremental as it builds on existing calibration techniques.
The paper tackles the problem of internal time misalignment in MEMS LiDAR by proposing a self-calibration method using a Minimum Vertical Gradient prior, which automatically calibrates the time difference without artificial participation or special targets, and experiments demonstrate its effectiveness in a simple laboratory environment.
This paper proposes a simple self-calibration method for the internal time synchronization of MEMS(Micro-electromechanical systems) LiDAR during research and development. Firstly, we introduced the problem of internal time misalignment in MEMS lidar. Then, a robust Minimum Vertical Gradient(MVG) prior is proposed to calibrate the time difference between the laser and MEMS mirror, which can be calculated automatically without any artificial participation or specially designed cooperation target. Finally, actual experiments on MEMS LiDARs are implemented to demonstrate the effectiveness of the proposed method. It should be noted that the calibration can be implemented in a simple laboratory environment without any ranging equipment and artificial participation, which greatly accelerate the progress of research and development in practical applications.