A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance
Passive LEO (Low Earth Orbit) satellites are a telecom premier option. However, LEO satellites impose not only stringent specifications on the resolution, precision and repeatability but also requiring advanced antenna technology for signal downlinking. To efficiently downlink LEO signals at each pa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/19/9505 |
| _version_ | 1797480889292161024 |
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| author | Miguel Espinoza Ernesto Olguín-Díaz Vicente Parra-Vega Rogelio Alvarez-Vargas |
| author_facet | Miguel Espinoza Ernesto Olguín-Díaz Vicente Parra-Vega Rogelio Alvarez-Vargas |
| author_sort | Miguel Espinoza |
| collection | DOAJ |
| description | Passive LEO (Low Earth Orbit) satellites are a telecom premier option. However, LEO satellites impose not only stringent specifications on the resolution, precision and repeatability but also requiring advanced antenna technology for signal downlinking. To efficiently downlink LEO signals at each passage onto a given Earth region, we explored large size passive Earth antenna and an array of smaller size active Earth antennas to minimize the trajectory loss. To guarantee design specifications, the dynamics cannot be neglected given the size and inertia of base and antenna. In this paper, it is proposed the design, path planning and control of a six DoF robotic antenna maneuvering the antenna subject to aerodynamic wind disturbance. The system maneuvers to point at the LEO satellite over the whole envelope with the required precision to guarantee robust point-to-point tracking. Representative simulation results for three geolocations shows practical tracking with off-the-shelf-component actuators, without requiring any knowledge of the dynamics while withstanding state-dependent persistent disturbances. |
| first_indexed | 2024-03-09T22:06:41Z |
| format | Article |
| id | doaj.art-84af9135716844dc9443fd76cfb777f8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:06:41Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-84af9135716844dc9443fd76cfb777f82023-11-23T19:40:46ZengMDPI AGApplied Sciences2076-34172022-09-011219950510.3390/app12199505A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind DisturbanceMiguel Espinoza0Ernesto Olguín-Díaz1Vicente Parra-Vega2Rogelio Alvarez-Vargas3Department of Automatic Control, CIATEQ A.C., Queretaro 76246, MexicoRobotics and Advanced Manufacturing Department, Research Center for Advanced Studies (Cinvestav), Saltillo 25900, MexicoRobotics and Advanced Manufacturing Department, Research Center for Advanced Studies (Cinvestav), Saltillo 25900, MexicoDepartment of Automatic Control, CIATEQ A.C., Queretaro 76246, MexicoPassive LEO (Low Earth Orbit) satellites are a telecom premier option. However, LEO satellites impose not only stringent specifications on the resolution, precision and repeatability but also requiring advanced antenna technology for signal downlinking. To efficiently downlink LEO signals at each passage onto a given Earth region, we explored large size passive Earth antenna and an array of smaller size active Earth antennas to minimize the trajectory loss. To guarantee design specifications, the dynamics cannot be neglected given the size and inertia of base and antenna. In this paper, it is proposed the design, path planning and control of a six DoF robotic antenna maneuvering the antenna subject to aerodynamic wind disturbance. The system maneuvers to point at the LEO satellite over the whole envelope with the required precision to guarantee robust point-to-point tracking. Representative simulation results for three geolocations shows practical tracking with off-the-shelf-component actuators, without requiring any knowledge of the dynamics while withstanding state-dependent persistent disturbances.https://www.mdpi.com/2076-3417/12/19/9505Gough–Stewart platformparallel robotonline trajectory generationLEO satellitedownlink tracking |
| spellingShingle | Miguel Espinoza Ernesto Olguín-Díaz Vicente Parra-Vega Rogelio Alvarez-Vargas A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance Applied Sciences Gough–Stewart platform parallel robot online trajectory generation LEO satellite downlink tracking |
| title | A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance |
| title_full | A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance |
| title_fullStr | A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance |
| title_full_unstemmed | A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance |
| title_short | A Parallel Robotic Antenna Design for Downlinking Leo Satellite Signal Subject to Wind Disturbance |
| title_sort | parallel robotic antenna design for downlinking leo satellite signal subject to wind disturbance |
| topic | Gough–Stewart platform parallel robot online trajectory generation LEO satellite downlink tracking |
| url | https://www.mdpi.com/2076-3417/12/19/9505 |
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