CASIA OpenIR
l(0 )Sparse Approximation of Coastline Inflection Method on FY-3C MWRI Data
Li, Weifu1,2; Luo, Zhicheng1,2; Liu, Chengbo3; Liu, Jiazheng4; Shen, Lijun4; Xie, Qiwei5; Han, Hua4; Yang, Lei3
Source PublicationIEEE GEOSCIENCE AND REMOTE SENSING LETTERS
ISSN1545-598X
2019
Volume16Issue:1Pages:85-89
Corresponding AuthorYang, Lei(yangl@cma.gov.cn)
AbstractThe microwave radiation imager (MWRI) located onboard the FengYun-3C (FY-3C) satellite provides a considerable amount of critical information for numerical weather predictions. Obtaining accurate geolocation results from the FY-3C MWRI data is of great importance. In this letter, we improve the traditional coastline inflection method (CIM) and propose an l(0) sparse approximation model for geolocation error estimation and correction. Specifically, we propose using the jump point of the step function to estimate the true coastline point. This approach can characterize the geolocation errors more accurately than the CIM, which further improves the geolocation accuracy. In the theoretical part, we provide a complete solution to obtain the step function through an iterative blind deconvolution. For a practical use, we demonstrate the effectiveness of the proposed method for geolocation error estimation through quantitative results obtained on the FY-3C MWRI data. The experimental results show that the proposed method can achieve an improvement of up to 33.33% in the standard deviation of geolocation errors (approximately 0.00030) compared to the traditional CIM (approximately 0.00045). Furthermore, we also apply the proposed method to the FY-3C satellite and improve the geolocation accuracy of the MWRI data through geolocation error correction.
KeywordCoastline inflection method (CIM) FengYun-3C (FY-3C) geolocation l(0) sparse microwave radiation imager (MWRI)
DOI10.1109/LGRS.2018.2867738
WOS KeywordACCURACY
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Problem[2018YFB0504900] ; National Key Research and Development Problem[2018YFB0504905] ; National Science Foundation of China[11771130] ; National Science Foundation of China[41501392] ; National Science Foundation of China[61871177] ; National Science Foundation of China[61673381] ; National Science Foundation of China[61701497] ; National Science Foundation of China[91338109] ; National Science Foundation of China[61172113] ; Scientific Instrument Developing Project of Chinese Academy of Sciences[YZ201671] ; Bureau of International Cooperation, CAS[153D31KYSB20170059]
Funding OrganizationNational Key Research and Development Problem ; National Science Foundation of China ; Scientific Instrument Developing Project of Chinese Academy of Sciences ; Bureau of International Cooperation, CAS
WOS Research AreaGeochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
WOS SubjectGeochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000455181800018
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/25320
Collection中国科学院自动化研究所
Corresponding AuthorYang, Lei
Affiliation1.Hubei Univ, Fac Math & Stat, Wuhan 430062, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
3.China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing 100081, Peoples R China
4.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100190, Peoples R China
5.Beijing Univ Technol, Data Min Lab, Beijing 100124, Peoples R China
First Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Weifu,Luo, Zhicheng,Liu, Chengbo,et al. l(0 )Sparse Approximation of Coastline Inflection Method on FY-3C MWRI Data[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2019,16(1):85-89.
APA Li, Weifu.,Luo, Zhicheng.,Liu, Chengbo.,Liu, Jiazheng.,Shen, Lijun.,...&Yang, Lei.(2019).l(0 )Sparse Approximation of Coastline Inflection Method on FY-3C MWRI Data.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,16(1),85-89.
MLA Li, Weifu,et al."l(0 )Sparse Approximation of Coastline Inflection Method on FY-3C MWRI Data".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 16.1(2019):85-89.
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