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Adaptive Separation of Subcarrier for Wireless Link of Satellite Communication

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Abstract

Currently, the subcarrier on the satellite communication wireless link has uncertain signal number and bandwidth and non-overlapped frequency spectra of mixed signals, and thus can hardly be separated and identified. Through analysis, a simple and effective estimation algorithm for subcarrier frequency was proposed and the code rate was estimated based on the instantaneous characteristics of the modulated signal. Results show that, using the proposed adaptive separation and recognition method, multiple signals can be effectively separated from the mixed signal, with high precision and strong noise immunity. Moreover, after partition, each subcarrier can be separated by the filter for modulation. The method is characterized by simple principle and ease of implementation.

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Acknowledgements

This paper is supported by the national natural science foundation of China (61401288), the Guangdong Province higher vocational colleges and schools Pearl River scholar funded scheme (2016), the science and technology development center of Ministry of Education of China (2017A15009), project of Shenzhen science and technology innovation committee (Base 20170502, JCYJ20160608151239996). The author would like to thank the editor and the anonymous reviewers for their contributions that enriched the final paper.

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Correspondence to Mingxiang Guan.

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Guan, M., Wang, L. & Peng, B. Adaptive Separation of Subcarrier for Wireless Link of Satellite Communication. Wireless Pers Commun 103, 159–166 (2018). https://doi.org/10.1007/s11277-018-5432-z

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  • DOI: https://doi.org/10.1007/s11277-018-5432-z

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