Time Domain Blind I/Q Imbalance Compensation Based on Real-Valued Filter

Abstract

This paper proposes a novel time domain blind compensation for frequency-independent and frequency-dependent I/Q imbalance in direct-conversion receivers. Analysis of a difference filter representing the frequency-dependent I/Q imbalance shows that the filter taps are tightly constrained by analog front-end image attenuation (IA). For practical front-ends… (More)
DOI: 10.1109/TWC.2012.092412.111680

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