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[Abstract]:In the simultaneous frequency full-duplex transceiver, an adaptive radio frequency interference cancellation algorithm based on the idea of fast searching is proposed, considering the single-path wireless self-interference channel scenario. By analyzing the influence of the self-interference amplitude estimation error and the phase estimation error on the residual received signal power after the RF self-interference cancellation, the fast adaptive interference cancellation algorithm in RF domain is introduced, and the convergence of the algorithm is discussed. The analysis and simulation show that in the simultaneous frequency full-duplex system, the RF adaptive interference cancellation algorithm based on fast search can effectively realize the RF domain self-interference cancellation, and compared with the existing RF adaptive interference cancellation methods, The convergence time is reduced by about 60.
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