NSSC OpenIR
Reduction of the Reconstruction Error With Lower and Upper Bounds in Synthetic Aperture Imaging Radiometers
Alternative TitleWOS:000568201600001;20203909221247
Yang, Xiaocheng; Yang, Zhenyi; Yan, Jingye1; Wu, Lin1; Jiang, Mingfeng; Lyu, Wentao
Source PublicationIEEE ACCESS
2020
Volume8Pages:156964-156971
DOI10.1109/ACCESS.2020.3018592
ISSN2169-3536
Language英语
KeywordBrightness temperature Apertures Image reconstruction Oceans Upper bound Radiometers Inverse problems Imaging radiometry synthetic aperture inverse problem reconstruction error PERMITTIVITY MEASUREMENTS MICROWAVE
AbstractSynthetic aperture imaging radiometers (SAIRs) are powerful instruments for high-resolution Earth observation by use of small-aperture antennas sparsely arranged to achieve a large-aperture antenna. High-precision reconstruction algorithm is one of the key contents of SAIRs. Owing to the ill-posed problem and band-limited physical characteristic, there is a still large residual error for traditional regularization methods. It should be noted that the prior information like the lower and upper bounds of the brightness temperature distributions has not been utilized in the reconstruction procedure, especially for the open ocean with relatively small brightness temperature difference. In order to reduce the reconstruction error in SAIRs, a reconstruction method based on active set algorithm is presented by solving the least squares problems with lower and upper bounds. The simulation experiment results show that the proposed method can more effectively reduce the reconstruction error and better improve the accuracy of retrieved brightness temperature distributions in SAIRs than the band-limited regularization method, demonstrating the effectiveness of the proposed method.
Indexed BySCI ; EI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7708
Collection中国科学院国家空间科学中心
Affiliation1.Zhejiang Sci Tech Univ, Sch Informat Sci & Technol, Hangzhou 310018, Peoples R China
2.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xiaocheng,Yang, Zhenyi,Yan, Jingye,et al. Reduction of the Reconstruction Error With Lower and Upper Bounds in Synthetic Aperture Imaging Radiometers[J]. IEEE ACCESS,2020,8:156964-156971.
APA Yang, Xiaocheng,Yang, Zhenyi,Yan, Jingye,Wu, Lin,Jiang, Mingfeng,&Lyu, Wentao.(2020).Reduction of the Reconstruction Error With Lower and Upper Bounds in Synthetic Aperture Imaging Radiometers.IEEE ACCESS,8,156964-156971.
MLA Yang, Xiaocheng,et al."Reduction of the Reconstruction Error With Lower and Upper Bounds in Synthetic Aperture Imaging Radiometers".IEEE ACCESS 8(2020):156964-156971.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, Xiaocheng]'s Articles
[Yang, Zhenyi]'s Articles
[Yan, Jingye]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Xiaocheng]'s Articles
[Yang, Zhenyi]'s Articles
[Yan, Jingye]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Xiaocheng]'s Articles
[Yang, Zhenyi]'s Articles
[Yan, Jingye]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.