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I/Q Imbalance Compensation in the Presence of Time-Varying Channel
Atsushi Minoda,Masashi Nakamura,Hai Lin,Katsumi Yamashita 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-
I/Q signal processing commonly faces the I/Q imbalance problem, which severely degrade the performance particularly in direct-conversion architecture receiver. In this paper, we propose a method for compensating I/Q imbalances using training sequence in time-varying channel. Finally, we estimate the parameters for I/Q imbalance compensation by maximum likelihood estimation (MLE).