Iterative pointing angle calibration method for the spaceborne photon-counting laser altimeter based on small-range terrain matching

doi:10.3390/rs11182158

	Iterative pointing angle calibration method for the spaceborne photon-counting laser altimeter based on small-range terrain matching
	Nan, Yaming 1,2,3,4; Feng, Zhihui 1,3; Liu, Enhai 1,3; Li, Bincheng 2
刊名	Remote Sensing
	2019-09-01
卷号	11 期号:18
关键词	spaceborne laser altimeter photon-counting terrain matching pointing angle calibration ICESat-2
DOI	10.3390/rs11182158
文献子类	期刊论文
英文摘要	The satellite, Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) has been equipped with a new type of spaceborne laser altimeter, which has the benefits of having small footprints and a high repetition rate, and it can produce dense footprints on the ground. Focusing on the pointing angle calibration of this new spaceborne laser altimeter, this paper proposes a fast pointing angle calibration method using only a small range of terrain surveyed by airborne lidar. Based on the matching criterion of least elevation difference, an iterative pointing angle calibration method was proposed. In the experiment, the simulated photon-counting laser altimeter data and the Ice, Cloud and Land Elevation Satellite-2 data were used to verify the algorithm. The results show that when 1 km and 2.5 km lengths of track were used, the pointing angle error after calibration could be reduced to about 0.3 arc-seconds and less than 0.1 arc-seconds, respectively. Meanwhile, compared with the traditional pyramid search method, the proposed iterative pointing angle calibration method does not require well-designed parameters, which are important in the pyramid search method to balance calculation time and calibration result, and the iterative pointing angle calibration method could significantly reduce the calibration time to only about one-fifth of that of the pyramid search method. © 2019 by the authors.
WOS关键词	GPS DATA ; LIDAR ; ICE ; VERIFICATION ; PERFORMANCE ; ANTARCTICA ; ALGORITHM ; AIRBORNE ; SYSTEM ; IMAGE
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI AG, Postfach, Basel, CH-4005, Switzerland
WOS记录号	WOS:000489101500088
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9795]
专题	空天部
作者单位	1.Institute of Optics and Electronics Chinese Academy of Sciences, Chengdu; 610209, China; 2.School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 610054, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.School of electrical and mechanical engineering, Pingdingshan University, Pingdingshan; 467000, China
推荐引用方式 GB/T 7714	Nan, Yaming,Feng, Zhihui,Liu, Enhai,et al. Iterative pointing angle calibration method for the spaceborne photon-counting laser altimeter based on small-range terrain matching[J]. Remote Sensing,2019,11(18).
APA	Nan, Yaming,Feng, Zhihui,Liu, Enhai,&Li, Bincheng.(2019).Iterative pointing angle calibration method for the spaceborne photon-counting laser altimeter based on small-range terrain matching.Remote Sensing,11(18).
MLA	Nan, Yaming,et al."Iterative pointing angle calibration method for the spaceborne photon-counting laser altimeter based on small-range terrain matching".Remote Sensing 11.18(2019).