Abstract
The cluster feed beamforming network uses a ground-based beamforming technique. In view of the complicated link transmission in ground-based beamforming networks, the channel calibration for forward/backward links of ground-based beamforming networks is given in the paper. Aiming at the problem of channel amplitude and phase inconsistency in beamforming network, two solutions are given: point frequency coherent amplitude-phase detection method and code division coherent amplitude-phase detection method. Because continuous wave signal is poor to resist wideband interference and fuzzy to solve delay ambiguity, a channel amplitude-phase detection method based on composite orthogonal code sequence is proposed, and the performance of beam synthesis after channel calibration is verified by the prototype, which proves the validity of the method.
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Wang, Z., Wang, Y., Fan, C., Li, B., Zhao, C. (2020). Cluster Feed Beam Synthesis Network Calibration. In: Liang, Q., Wang, W., Liu, X., Na, Z., Jia, M., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2019. Lecture Notes in Electrical Engineering, vol 571. Springer, Singapore. https://doi.org/10.1007/978-981-13-9409-6_223
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DOI: https://doi.org/10.1007/978-981-13-9409-6_223
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