Abstract

The LiDAR system uses laser pulses to delineate the 3D depth map. The laser pulses are emitted through multiple laser guns with corresponding photo diodes, and the mechanical devices are required so that the detection plane can be wide enough. All these factors make the LiDAR system big and expensive. Additionally, if there are multiple LiDAR systems in the same filed and are detecting at the same time, the measurement can be interfered by one another. In this paper we proposed the algorithm to differentiate different LiDAR systems in the same field and refine the estimation. Moreover, an FPGA platform was built to validate the proposed architecture. The dimension of the platform is greatly reduced and can be applied to portable LiDAR systems. With the proposed modulation scheme, the detecting laser waveform shall not interfere one anther while refining the estimation.