Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint
An online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle. Firstly, based on the Evolved Acceleration Guidance Logic for Entry (EAGLE), drag acceleration-energy profiles are designed. To track the drag acceleration-...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8827377 |
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| author | Shengnan Fu Tianyu Lu Jian Yin Qunli Xia |
| author_facet | Shengnan Fu Tianyu Lu Jian Yin Qunli Xia |
| author_sort | Shengnan Fu |
| collection | DOAJ |
| description | An online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle. Firstly, based on the Evolved Acceleration Guidance Logic for Entry (EAGLE), drag acceleration-energy profiles are designed. To track the drag acceleration-energy profile obtained by the interpolation, a drag acceleration tracking law is designed. Secondly, based on the constraint model of the no-fly zone, flying around strategies are proposed for different conditions, and a reachable area algorithm is designed for no-fly zones. Additionally, by interpolating the minimum and maximum drag acceleration profiles, the terminal heading angle constraint is designed to realize the accurate calculation of the minimum and maximum downrange ranges by adjusting the sign of the bank angle. In this way, the distribution of landing footprints is more reasonable, and the boundary of a reachable area is more accurate. The simulation results under typical conditions indicate that the proposed method can calculate landing footprints for different situations rapidly and with the good adaptability. |
| format | Article |
| id | doaj-art-b053c7e614384bc7a7fad92b95048ea6 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-b053c7e614384bc7a7fad92b95048ea62025-08-20T03:39:17ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/88273778827377Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone ConstraintShengnan Fu0Tianyu Lu1Jian Yin2Qunli Xia3School of Mechatronical Engineering, Beijing Institute of Technology, ChinaBeijing Aerospace Automatic Control Institute, ChinaInstitute of Macro Demonstration Equipment Academy of Air Force, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, ChinaAn online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle. Firstly, based on the Evolved Acceleration Guidance Logic for Entry (EAGLE), drag acceleration-energy profiles are designed. To track the drag acceleration-energy profile obtained by the interpolation, a drag acceleration tracking law is designed. Secondly, based on the constraint model of the no-fly zone, flying around strategies are proposed for different conditions, and a reachable area algorithm is designed for no-fly zones. Additionally, by interpolating the minimum and maximum drag acceleration profiles, the terminal heading angle constraint is designed to realize the accurate calculation of the minimum and maximum downrange ranges by adjusting the sign of the bank angle. In this way, the distribution of landing footprints is more reasonable, and the boundary of a reachable area is more accurate. The simulation results under typical conditions indicate that the proposed method can calculate landing footprints for different situations rapidly and with the good adaptability.http://dx.doi.org/10.1155/2021/8827377 |
| spellingShingle | Shengnan Fu Tianyu Lu Jian Yin Qunli Xia Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint International Journal of Aerospace Engineering |
| title | Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint |
| title_full | Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint |
| title_fullStr | Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint |
| title_full_unstemmed | Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint |
| title_short | Rapid Algorithm for Generating Entry Landing Footprints Satisfying the No-Fly Zone Constraint |
| title_sort | rapid algorithm for generating entry landing footprints satisfying the no fly zone constraint |
| url | http://dx.doi.org/10.1155/2021/8827377 |
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