Boundary Detection in Three Dimensions With Application to the SMILE Mission: The Effect of Photon Noise

doi:10.1029/2018JA025919

	Boundary Detection in Three Dimensions With Application to the SMILE Mission: The Effect of Photon Noise
	Jorgensen, Anders M.; Sung, Tianran; Wang, Chi; Dai, Lei; Sembay, Steven; Wei, Fei; Guo, Yihong; Xu, Ronglan
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2019
卷号	124 期号:6 页码:4365-4383
ISSN号	2169-9380
DOI	10.1029/2018JA025919
英文摘要	Imaging magnetospheric satellite missions provide information, which is complementary to in situ observations. Imaging is often able to provide an instantaneous picture of large-scale structures, whereas in situ measurements, even multipoint in situ measurements, can only provide an average view of large-scale structure. But imaging also presents some challenges. When three-dimensional structures need to be extracted from two-dimensional images, it is necessary to either make suitable assumptions or record a large enough number of images from different viewing geometries to allow a reconstruction (e.g., tomography). Imaging data exist over a wide range of sources including visible light, ultraviolet light, extreme ultraviolet, energetic neutral atoms, and X-rays, each informing different physical mechanisms. In this paper we consider the extraction of the geometry of the magnetopause and the bow shock from single X-ray images expected from the Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission. We examine the effect of photon-counting noise in determining the boundary geometries. We also consider the effect of different viewing geometries in the form of orbital vantage point and target look direction. Finally, we consider the effect of background noise. We find that our approach is relatively robust to viewing geometry effects and works at low count rates.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/7194]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Jorgensen, Anders M.,Sung, Tianran,Wang, Chi,et al. Boundary Detection in Three Dimensions With Application to the SMILE Mission: The Effect of Photon Noise[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(6):4365-4383.
APA	Jorgensen, Anders M..,Sung, Tianran.,Wang, Chi.,Dai, Lei.,Sembay, Steven.,...&Xu, Ronglan.(2019).Boundary Detection in Three Dimensions With Application to the SMILE Mission: The Effect of Photon Noise.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(6),4365-4383.
MLA	Jorgensen, Anders M.,et al."Boundary Detection in Three Dimensions With Application to the SMILE Mission: The Effect of Photon Noise".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.6(2019):4365-4383.