Three-Dimensional Imaging Approach for a Novel Airborne Array-Encoding Lidar

摘要

Due to the limitations of large-scale APD arrays, the traditional airborne LiDAR systems can hardly achieve significant improvement of 3D imaging resolution. To overcome this difficulty, a novel airborne array-encoding LiDAR is proposed in this paper. The system structure and work principle are first presented. Then the key modules involving encoding, multiplexing and data decoding are introduced. In particular, the data decoding method is designed and verified for data processing of the encoded full waveforms. The experimental results indicate that the proposed LiDAR can complete 128×128 -pixel 3D imaging with only 64-element APD array under scannerless condition by employing 16×16 array-encoding.