Abstract
Modern satellite communication systems are designed to meet broadband, high-capacity and high-speed service requirements, but spectrum-limited and quality-of-service issues due to spatial multiplexing of spectrum resources can not be ignored. Because of the multicast mode, the interference problem between multi-users in satellite communication is very serious. Therefore, multi-beam forming in the digital domain is the development trend of multi-beam forming structure. In this paper, we propose a block-adaptive least mean square algorithm, which is based on the strong rainfall attenuation of the Ka-band GEO satellite system. The algorithm is applied in the use of 37 array elements evenly arranged phased array antenna to form 7 spot beams. The convergence and tracking characteristics of the improved algorithm are analyzed by comparing the typical LMS algorithm. Finally, a pattern of the given coverage area beam is formed.
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Acknowledgment
The paper is sponsored by National Natural Science Foundation of China (No. 91538104; No. 91438205)
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Zhang, Y., Liu, X., Yang, M. (2019). Block Adaptive Least Mean Square Algorithm for Satellite Multi-beamforming. In: Liang, Q., Mu, J., Jia, M., Wang, W., Feng, X., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2017. Lecture Notes in Electrical Engineering, vol 463. Springer, Singapore. https://doi.org/10.1007/978-981-10-6571-2_110
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DOI: https://doi.org/10.1007/978-981-10-6571-2_110
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