Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View
Star sensors make use of astronomical information in stars to determine attitude for spacecrafts by star image recognition. For low-cost star sensors with small field of view, fusion of observed images from multiple fields of view is performed and a novel recognition algorithm based on path optimiza...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2018/8261068 |
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| _version_ | 1850222176503857152 |
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| author | Di Jiang Ke Zhang Olivier Debeir |
| author_facet | Di Jiang Ke Zhang Olivier Debeir |
| author_sort | Di Jiang |
| collection | DOAJ |
| description | Star sensors make use of astronomical information in stars to determine attitude for spacecrafts by star image recognition. For low-cost star sensors with small field of view, fusion of observed images from multiple fields of view is performed and a novel recognition algorithm based on path optimization by randomly distributed ant colony is proposed. According to pheromone intensity, the ant colony can autonomously figure out a close optimal path without starting or ending point, rather than certifying a starting point first. Feature patterns extracted from the optimal path in guiding template and observed image after fusion are compared to perform star recognition. By the proposed algorithm, starting point for path optimization has no influence on the extracted feature pattern. Thus the star recognition rate is improved due to the higher stability of the extracted pattern. Simulations indicate that the algorithm improves recognition accuracy and robustness against noise for sensors with multiple fields of view. |
| format | Article |
| id | doaj-art-6e8b42fe5b0a42e7a546554ba7008efc |
| institution | OA Journals |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-6e8b42fe5b0a42e7a546554ba7008efc2025-08-20T02:06:27ZengWileyAdvances in Astronomy1687-79691687-79772018-01-01201810.1155/2018/82610688261068Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of ViewDi Jiang0Ke Zhang1Olivier Debeir2College of Astronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaCollege of Astronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaLaboratories of Image, Signal Processing and Acoustics at Université Libre de Bruxelles, Brussels 1050, BelgiumStar sensors make use of astronomical information in stars to determine attitude for spacecrafts by star image recognition. For low-cost star sensors with small field of view, fusion of observed images from multiple fields of view is performed and a novel recognition algorithm based on path optimization by randomly distributed ant colony is proposed. According to pheromone intensity, the ant colony can autonomously figure out a close optimal path without starting or ending point, rather than certifying a starting point first. Feature patterns extracted from the optimal path in guiding template and observed image after fusion are compared to perform star recognition. By the proposed algorithm, starting point for path optimization has no influence on the extracted feature pattern. Thus the star recognition rate is improved due to the higher stability of the extracted pattern. Simulations indicate that the algorithm improves recognition accuracy and robustness against noise for sensors with multiple fields of view.http://dx.doi.org/10.1155/2018/8261068 |
| spellingShingle | Di Jiang Ke Zhang Olivier Debeir Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View Advances in Astronomy |
| title | Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View |
| title_full | Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View |
| title_fullStr | Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View |
| title_full_unstemmed | Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View |
| title_short | Star Recognition Based on Path Optimization in Star Sensor with Multiple Fields of View |
| title_sort | star recognition based on path optimization in star sensor with multiple fields of view |
| url | http://dx.doi.org/10.1155/2018/8261068 |
| work_keys_str_mv | AT dijiang starrecognitionbasedonpathoptimizationinstarsensorwithmultiplefieldsofview AT kezhang starrecognitionbasedonpathoptimizationinstarsensorwithmultiplefieldsofview AT olivierdebeir starrecognitionbasedonpathoptimizationinstarsensorwithmultiplefieldsofview |