Abstract
The triangular lattice is preferred in the case when the available estate is limited, since it entails a higher element density than that obtainable with a square lattice of identical inter-element distance. However, the antenna pattern of the triangular lattice is very sensitive to the change of the beam pointing direction due to its nonuniform distribution of beam gain, which probably results in a large SNR decrease with a minor beam pointing error. To address this issue, in this paper, we focus on the two dimensions, i.e., the elevation angle and the azimuth angle, and propose an adaptive azimuth adjustment algorithm to overcome the performance loss caused by the unpredictable elevation angle’s variation. Simulation results reveal that the total SNR reduction is less than 0.18dB when the elevation angle changes up to \(\pm {5^\circ }\), which demonstrates the robustness of our proposed algorithm.
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© 2023 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Yang, R., Chen, Y., Kong, C., Li, R., Wang, J., Wang, K. (2023). A Robust Beamforming Algorithm for Satellite Communication. In: Zhao, J. (eds) Wireless and Satellite Systems. WiSATS 2023. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 509. Springer, Cham. https://doi.org/10.1007/978-3-031-34851-8_8
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DOI: https://doi.org/10.1007/978-3-031-34851-8_8
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