Blind Estimation and Compensation of I/Q Imbalance in OFDM Receivers with Enhancements Through Kalman Filtering

Abstract

I/Q imbalance has been identified as one of the key challenges in the practical implementation of the direct-conversion receiver architecture. This holds in particular at the reception of multi-carrier signals, such as OFDM. While allowing highly integrated and low-cost solutions, direct-conversionmay cause serious signal distortions due to an imbalanced I… (More)

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