Статья

Development of a Lightweight Single-Band Bathymetric LiDAR

Guoqing ZhouGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaXiang ZhouGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaWeihao LiGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaDawei ZhaoGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaBo SongGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaChao XuGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaHaotian ZhangGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaZhexian LiuGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaJiasheng XuGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaGangchao LinGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaRonghua DengGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaHaocheng HuGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaYizhi TanGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaJinchun LinGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaJiazhi YangGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaXueqin NongThe 34th Research Institute of China Electronics Technology Group Corporation, Guilin 541004, ChinaChenyang LiYiqiang ZhaoSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaCheng WangInstitute of Aerospace Information Innovation, Chinese Academy of Sciences, Beijing 100864, ChinaLieping ZhangGuangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541004, ChinaLiping Zou

2022en

ABI

Аннотация

Traditional bathymetry LiDAR (light detection and ranging) onboard manned and/or unmanned airborne systems cannot operate in the context of narrow rivers in urban areas with high buildings and in mountainous areas with high peaks. Therefore, this study presents a prototype of a lightweight bathymetry LiDAR onboard an unmanned shipborne vehicle (called “GQ-Cor 19”). The GQ-Cor 19 system primarily includes an emitting optical module, a receiving optical module, control module, detection module, high-speed A/D sampling module, and data processing system. Considering that the “GQ-Cor 19” is extremely close to the water surface, various new technical challenges are encountered, such as significant laser scattering energy from the surface of the water, which saturates signals received by the photomultiplier tube detector. Therefore, this study presents various new technical solutions, including (1) an improved Bresenham algorithm, (2) a small and lightweight receiving optical system with a split-field method, and (3) a data acquisition module with a high-speech A/D collector. Following a series of different experimental verifications, the results demonstrate that the new generation of single-band LiDAR onboard an unmanned shipborne vehicle can swiftly measure the underwater depth, and the maximum measurement depth is more than 25 m. The measurement accuracy is better than 30 cm and the weight is less than 12 kg.

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Идентификаторы

DOI: 10.3390/rs14225880

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar