Bathymetry Retrieval Method of LiDAR Waveform Based on Multi-Gaussian Functions

doi:10.2112/SI90-041.1

	Bathymetry Retrieval Method of LiDAR Waveform Based on Multi-Gaussian Functions
	Ma, Yi 1; Zhang, Jie 1; Zhang, Zhen 2; Zhang, Jing-Yu 1
刊名	JOURNAL OF COASTAL RESEARCH
	2019-06
页码	324-331
关键词	LiDAR bathymetric model water depth inversion
ISSN号	0749-0208
DOI	10.2112/SI90-041.1
英文摘要	This paper provides a water depth inversion approach to laser radar waveform data based on multi-Gauss function in order to address the following two problems: the impact of noise on the traditional bathymetry and the poor accuracy of the water depth inversion in deep water. This approach employs L-M optimization algorithm to make multiple Gauss functions iterate and fit the LiDAR waveform data, and then uses peak detection method to extract the echo signal from the surface and the bottom of the water. In this paper, the water depth inversion is carried out using the simulation data of LiDAR water echo and the Aquarius LiDAR waveform data around the water area of the Ganquan Island respectively. Taking the mean relative error (MRE) and the mean absolute error (MAE) as the evaluation index of accuracy, the result shows that the detection model of LiDAR bathymetry has a higher ability of water depth inversion in the range of detectable water depth. For simulation data, the MAE is 20 cm and the MRE is below 7 % in the water depth range of 2 m to 10 m. While for real LiDAR waveform data, the MAE of water depth inversion is between 30 cm and 75 cm, and the MRE is below 12 %.
资助项目	National Natural Science Foundation of China[51839002]
WOS关键词	ALGORITHMS
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
语种	英语
出版者	COASTAL EDUCATION & RESEARCH FOUNDATION
WOS记录号	WOS:000485714500042
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/30204]
专题	自然资源部第一海洋研究所
通讯作者	Zhang, Zhen
作者单位	1.Minist Nat Resources, Inst Oceanog 1, Marine Phys & Remote Sensing Res Dept, Qingdao, Shandong, Peoples R China 2.Shandong Univ Sci & Technol, Coll Geomat, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yi,Zhang, Jie,Zhang, Zhen,et al. Bathymetry Retrieval Method of LiDAR Waveform Based on Multi-Gaussian Functions[J]. JOURNAL OF COASTAL RESEARCH,2019:324-331.
APA	Ma, Yi,Zhang, Jie,Zhang, Zhen,&Zhang, Jing-Yu.(2019).Bathymetry Retrieval Method of LiDAR Waveform Based on Multi-Gaussian Functions.JOURNAL OF COASTAL RESEARCH,324-331.
MLA	Ma, Yi,et al."Bathymetry Retrieval Method of LiDAR Waveform Based on Multi-Gaussian Functions".JOURNAL OF COASTAL RESEARCH (2019):324-331.