Simulation of Adaptive Antenna Array Implementation for Low Earth Orbit Constellation Tracking
| Autor: | Syazana Basyirah Binti Mohammad Zaki |
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| Jazyk: | angličtina |
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| Popis: | 1 Introduction||2 Theoretical Background and Literature Review||3 Research Methodology||4 Results and Discussion||5 Conclusion and Recommendation Since Low Earth Orbit has become an in orbit to place satellites, CubeSat constellation tracking is challenging. Higher capacity and capability of a new Ground Station tracking system are in demand and this, motivates researchers to come out with a solution to mitigate the traditional Ground Station degradation performance. This paper discusses the Least Mean Square algorithm's implementation in Adaptive Array Antenna for the Ground Station tracking system application. The simulation results show the capability of the main beam pattern to perform instantaneous tracking and steering towards the targeted CubeSat while suppressing the side lobes towards the other interfering CubeSats when a massive CubeSats constellation take place. Planar and circular array antennas are analyzed by setting the optimum weighting factors to be adapted. Three scenarios of CubeSats constellations are simulated. The performance of the Adaptive Array Antenna for each scenario is analyzed based on the beam width characteristics and the Signal-to-Interference Ratio of the beam pattern. The number of CubeSats tracked by the Adaptive Array Antenna and the capability of the system to perform fast-tracking as the number of antenna array elements is increased also discussed in this paper. Finally, solutions to mitigate the limitation of the Least Mean Square algorithm to perform fast-tracking when massive interferer CubeSats are nearby are proposed. 九州工業大学博士学位論文 学位記番号：工博甲第507号 学位授与年月日：令和2年9月25日 令和2年度 |
| Databáze: | OpenAIRE |
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