Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A
Extracting accurate star centroids in the observed star images is one of the key problems for image navigation of the geosynchronous interferometric infrared sounder (GIIRS) of Fengyun-4A Satellite (FY-4A), the first scientific experimental satellite of the new generation of Chinese geostationary me...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8629974/ |
| _version_ | 1818854482090393600 |
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| author | Haopeng Zhang Yi Su Lei Yang Jian Shang Chengbao Liu Jing Wang Shengxiong Zhou Zhiguo Jiang Zhiqing Zhang |
| author_facet | Haopeng Zhang Yi Su Lei Yang Jian Shang Chengbao Liu Jing Wang Shengxiong Zhou Zhiguo Jiang Zhiqing Zhang |
| author_sort | Haopeng Zhang |
| collection | DOAJ |
| description | Extracting accurate star centroids in the observed star images is one of the key problems for image navigation of the geosynchronous interferometric infrared sounder (GIIRS) of Fengyun-4A Satellite (FY-4A), the first scientific experimental satellite of the new generation of Chinese geostationary meteorological satellite Fengyun-4 series. Compared with star sensors which are widely used for star observation, it is challenging to detect the 2×2 star spot from the focused star images of GIIRS and calculate the star centroid in high precision. In this paper, we propose a star detection and centroiding method based on trajectory search and trajectory fitting. Since the launch of FY-4A in December 2016, our centroiding method has been tested in-orbit for over two years. The extensive experiments show that the star centroiding error of our method is less than 0.3 pixels, which makes an important contribution to image navigation of FY-4A. |
| first_indexed | 2024-12-19T07:53:24Z |
| format | Article |
| id | doaj.art-0eff9d5bde294a6f8483a12ee64c2654 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T07:53:24Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-0eff9d5bde294a6f8483a12ee64c26542022-12-21T20:30:03ZengIEEEIEEE Access2169-35362019-01-017185101852010.1109/ACCESS.2019.28961488629974Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4AHaopeng Zhang0https://orcid.org/0000-0003-1981-8307Yi Su1Lei Yang2Jian Shang3Chengbao Liu4Jing Wang5Shengxiong Zhou6Zhiguo Jiang7Zhiqing Zhang8Image Processing Center, School of Astronautics, Beihang University, Beijing, ChinaImage Processing Center, School of Astronautics, Beihang University, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaSouthwest Electronics and Telecommunication Technology Research Institute, Chengdu, Sichuan, ChinaImage Processing Center, School of Astronautics, Beihang University, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaExtracting accurate star centroids in the observed star images is one of the key problems for image navigation of the geosynchronous interferometric infrared sounder (GIIRS) of Fengyun-4A Satellite (FY-4A), the first scientific experimental satellite of the new generation of Chinese geostationary meteorological satellite Fengyun-4 series. Compared with star sensors which are widely used for star observation, it is challenging to detect the 2×2 star spot from the focused star images of GIIRS and calculate the star centroid in high precision. In this paper, we propose a star detection and centroiding method based on trajectory search and trajectory fitting. Since the launch of FY-4A in December 2016, our centroiding method has been tested in-orbit for over two years. The extensive experiments show that the star centroiding error of our method is less than 0.3 pixels, which makes an important contribution to image navigation of FY-4A.https://ieeexplore.ieee.org/document/8629974/Star centroidingtrajectory fittingstar recognitionFengyun-4Ageostationary satellite |
| spellingShingle | Haopeng Zhang Yi Su Lei Yang Jian Shang Chengbao Liu Jing Wang Shengxiong Zhou Zhiguo Jiang Zhiqing Zhang Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A IEEE Access Star centroiding trajectory fitting star recognition Fengyun-4A geostationary satellite |
| title | Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A |
| title_full | Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A |
| title_fullStr | Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A |
| title_full_unstemmed | Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A |
| title_short | Star Detection and Accurate Centroiding for the Geosynchronous Interferometric Infrared Sounder of Fengyun-4A |
| title_sort | star detection and accurate centroiding for the geosynchronous interferometric infrared sounder of fengyun 4a |
| topic | Star centroiding trajectory fitting star recognition Fengyun-4A geostationary satellite |
| url | https://ieeexplore.ieee.org/document/8629974/ |
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