Research on constellation fault satellite replacement strategy based on Markov decision process
With the decrease of the importance of single satellite caused by the large-scale constellation，multiple replacement methods and the retention of faulty satellites should be considered when formulating the replacement strategy of faulty satellites. In response to this requirement，a method of formula...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2025-04-01
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| Series: | Hangkong gongcheng jinzhan |
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| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023126 |
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| author | LIN Ruoyu FENG Yunwen XUE Xiaofeng ZHENG Xiaoyan CUI Shuai |
| author_facet | LIN Ruoyu FENG Yunwen XUE Xiaofeng ZHENG Xiaoyan CUI Shuai |
| author_sort | LIN Ruoyu |
| collection | DOAJ |
| description | With the decrease of the importance of single satellite caused by the large-scale constellation，multiple replacement methods and the retention of faulty satellites should be considered when formulating the replacement strategy of faulty satellites. In response to this requirement，a method of formulating constellation orbital satellite replacement strategy based on Markov decision process is proposed. The orbital states are divided to the number of satellites in orbit，on-orbit backup and ground backup. On this basis，a return function model representing the expected maintenance cost is constructed by combining different replacement methods of faulty satellites and corresponding ordering，storage and penalty costs. Sequential replacement strategies are formulated with the goal of minimizing the expected maintenance cost of each decision-making cycle and an application analysis is carried out taking a certain constellation orbit as an example. The results show that when ground backup satellites are used to replace faulty satellites，it tends to supplement the consumed. The longer the mean time between failures，the lower the total expected maintenance cost，but the effect is gradually weakened. The increase of penalty cost will lead to the solidification of strategies，and the upward trend of total maintenance cost is expected to be greatly slowed down. |
| format | Article |
| id | doaj-art-e0cde1decafe4c019175720fdfbd0999 |
| institution | DOAJ |
| issn | 1674-8190 |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj-art-e0cde1decafe4c019175720fdfbd09992025-08-20T02:55:46ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902025-04-01162626910.16615/j.cnki.1674-8190.2025.02.0720250207Research on constellation fault satellite replacement strategy based on Markov decision processLIN Ruoyu0FENG Yunwen1XUE Xiaofeng2ZHENG Xiaoyan3CUI Shuai4School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaInnovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai 201203, ChinaInnovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai 201203, ChinaWith the decrease of the importance of single satellite caused by the large-scale constellation，multiple replacement methods and the retention of faulty satellites should be considered when formulating the replacement strategy of faulty satellites. In response to this requirement，a method of formulating constellation orbital satellite replacement strategy based on Markov decision process is proposed. The orbital states are divided to the number of satellites in orbit，on-orbit backup and ground backup. On this basis，a return function model representing the expected maintenance cost is constructed by combining different replacement methods of faulty satellites and corresponding ordering，storage and penalty costs. Sequential replacement strategies are formulated with the goal of minimizing the expected maintenance cost of each decision-making cycle and an application analysis is carried out taking a certain constellation orbit as an example. The results show that when ground backup satellites are used to replace faulty satellites，it tends to supplement the consumed. The longer the mean time between failures，the lower the total expected maintenance cost，but the effect is gradually weakened. The increase of penalty cost will lead to the solidification of strategies，and the upward trend of total maintenance cost is expected to be greatly slowed down.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023126satellite constellationbackup strategymarkov decision processreplacement methodmaintenance cost |
| spellingShingle | LIN Ruoyu FENG Yunwen XUE Xiaofeng ZHENG Xiaoyan CUI Shuai Research on constellation fault satellite replacement strategy based on Markov decision process Hangkong gongcheng jinzhan satellite constellation backup strategy markov decision process replacement method maintenance cost |
| title | Research on constellation fault satellite replacement strategy based on Markov decision process |
| title_full | Research on constellation fault satellite replacement strategy based on Markov decision process |
| title_fullStr | Research on constellation fault satellite replacement strategy based on Markov decision process |
| title_full_unstemmed | Research on constellation fault satellite replacement strategy based on Markov decision process |
| title_short | Research on constellation fault satellite replacement strategy based on Markov decision process |
| title_sort | research on constellation fault satellite replacement strategy based on markov decision process |
| topic | satellite constellation backup strategy markov decision process replacement method maintenance cost |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023126 |
| work_keys_str_mv | AT linruoyu researchonconstellationfaultsatellitereplacementstrategybasedonmarkovdecisionprocess AT fengyunwen researchonconstellationfaultsatellitereplacementstrategybasedonmarkovdecisionprocess AT xuexiaofeng researchonconstellationfaultsatellitereplacementstrategybasedonmarkovdecisionprocess AT zhengxiaoyan researchonconstellationfaultsatellitereplacementstrategybasedonmarkovdecisionprocess AT cuishuai researchonconstellationfaultsatellitereplacementstrategybasedonmarkovdecisionprocess |