Research Progress of Domestic Airborne Dual-Frequency LiDAR Detection Technology

Yan, 贺岩 He; Shanjiang, 胡善江 Hu; Weibiao, 陈卫标 Chen; Xiaolei, 朱小磊 Zhu; Yongxing, 王永星 Wang; Zhong, 杨忠 Yang; Xia, 朱霞 Zhu; Deliang, 吕德亮 Lü; Jiayong, 俞家勇 Yu; Tiancheng, 黄田程 Huang; Xiaohuan, 习晓环 Xi; Shuai, QU; Bin, 姚斌 Yao

doi:10.3788/lop55.082801

Cited by 14 publications

(4 citation statements)

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“…The method was verified by the Mapper5000 airborne LiDAR system in Haitang Bay experiment in Sanya, Hainan in September 2017. Mapper5000 was developed by Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences [16]. The repetition rate of the laser pulse is 5kHz.…”

Section: Resultsmentioning

confidence: 99%

“…The conjugated point cloud is extracted by selecting routes and processing point cloud, and the installation angle error is calculated by matching the conjugate point cloud. Airborne LiDAR data from Mapper5000 [16] developed by Shanghai Institute of Optics and Fine Mechanics is used to verify the convenience of the method. This method is expected to effectively improve the correction of system calibration and improve the efficiency of researchers using LiDAR to detect shallow sea terrain.…”

Section: Introductionmentioning

confidence: 99%

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Automatic calibration of airborne LiDAR installation angle based on point cloud conjugate matching

Gu,

Zhou,

Zhao

et al. 2024

J. Phys.: Conf. Ser.

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Airborne LiDAR plays an important role in island detection, shallow ocean topography mapping and intertidal zone detection. The installation angle error usually leads to deviation between overlapping strips, which affects the accuracy of LiDAR point cloud data. However, previous methods had complex requirements for routes and calibration field, leading to inefficient calibration. This paper proposes an automatic installation angle error calibration algorithm based on point cloud conjugate matching, which does not require strict route design and field selection. In the algorithm, the conjugated point cloud is extracted by selecting routes and processing point cloud, and the installation angle error is calculated by matching the conjugate point cloud. Airborne LiDAR data from Shanghai Institute of Optics and Fine Mechanics is utilized to verify the method which show that the overlap degree of conjugate point clouds can reach 90% in different routes. This method is expected to dramatically improve the efficiency of system calibration and the convenience of measurement.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Automatic calibration of airborne LiDAR installation angle based on point cloud conjugate matching

Gu,

Zhou,

Zhao

et al. 2024

J. Phys.: Conf. Ser.

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show abstract

“…In 2013, with support from the National Major Scientific Instrument and Equipment Development Project and the Public Welfare Special Scientific Research Fund for Surveying and Mapping Geographic Information of China, SIOM embarked on the development of a new generation of airborne laser depth measurement systems [47] . The engineering prototype of the airborne dual-frequency laser radar (Mapper 5000-S) was successfully developed in 2015 and completed three airborne flight tests in the South China Sea, providing three-dimensional topographic data for integrated land and sea areas.…”

Section: Commercial Stagementioning

confidence: 99%

The current state of development in underwater lidar detection

Yu,

Wang

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems

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Oceans cover approximately 71% of the Earth’s surface and contain 97% of the planet’s total water resources. However, over 80% of the ocean remains unexplored and unmapped. Thus, the research of underwater detection technology and the development of underwater detection equipment are crucial to marine scientific research and development. Underwater Lidar detection technology has the advantages of high ranging accuracy, high spatial resolution and strong anti-interference ability compared with traditional sonar and other technologies. It is an important underwater information acquisition method and has been widely concerned by researchers. This technology is used in submarine topographic mapping, marine rights and interests maintenance, marine resources development and other fields. In this article, firstly, the detection principles of various underwater detection Lidar systems are described, including the time-of-flight detection principle based on the linear detection regime and the photon counting detection regime, and the laser line scanning detection principle, as well as the laser line scanning detection principle. Additionally, the development history of various underwater detection Lidar systems is summarized and sorted out, including Spaceborne Lidar, Airborne Lidar and Underwater Vehicle Mounted Lidar. In addition, the technical characteristics, advantages and disadvantages of the Lidar underwater detection systems under different mounted platforms are compared and analyzed. Generally speaking, Lidar underwater detection system has been fully developed and tends to be mature, and has been widely used in many fields of underwater detection, making up for the gaps in many fields of marine information detection, and gradually forming commercialized products and entering into operational observation. With the continuous progress of laser technology, detection technology, information processing technology and the development of artificial intelligence, deep learning and other high-end fields, the development of Lidar underwater detection system also tends to be intelligent, automated and miniaturized.

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“…Ocean University of China took the lead in developing BLOL [20] dual-frequency laser radar for bathymetry, and Zhu [21] of Huazhong University of Science and Technology developed blue-green laser radar, and carried out airborne laser sounding experiments in Yalong Bay, South China Sea. The Shanghai Institute of Optics and Mechanics developed the Mapper5000 dual-frequency LiDAR in 2015, with a maximum sounding depth of 50m [22] .…”

Section: History Of Dual-frequency Bathymetric Lidarmentioning

confidence: 99%

Overview of ocean bathymetric LiDAR

Xu,

Liu,

Zhou

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Applications of Imaging Technologies

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Ocean bathymetric LiDAR relies on high efficiency, high precision, fast, safe, etc. characteristics, can used to conveniently acquire underwater terrain data, ocean surface laser scattering, near-coastal engineering, and detection of underwater mines and other targets. So, the United States, Canada, Australia, etc., have competed to develop ocean bathymetric LiDAR. Laser energy, laser repetition frequency, max sounding depth, min sounding depth, point cloud density and vertical accuracy have been greatly improved. Because the problems of large size, heavy weight, and the need to carry manned aircraft platforms and airport runways of this LiDAR, the United States, Austria and China have begun to study single-frequency LiDAR that are small in size, light in weight, capable of carrying UAV platforms, and take off anytime, anywhere.

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Research Progress of Domestic Airborne Dual-Frequency LiDAR Detection Technology

Cited by 14 publications

References 0 publications

Automatic calibration of airborne LiDAR installation angle based on point cloud conjugate matching

Automatic calibration of airborne LiDAR installation angle based on point cloud conjugate matching

The current state of development in underwater lidar detection

Overview of ocean bathymetric LiDAR

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