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2014 12th International Conference on Frontiers of Information Technology (FIT) (2014)
Islamabad, Pakistan
Dec. 17, 2014 to Dec. 19, 2014
ISBN: 978-1-4799-7504-4
pp: 127-132
ABSTRACT
In this work, we present an adaptive non-data-aided compensator for the in-phase/quadrature-phase (I/Q) mismatch in low-intermediate frequency (heterodyne) receivers. In particular, the adaptive I/Q mismatch algorithm is derived by exploiting the uncorrelatedness between the desired and the image signals, and is used to compensate for gain imbalance and phase-offset error. Furthermore, the frequency-offset error is separately compensated by using an adaptive minimization of a fourth-order statistics based cost function.
INDEX TERMS
Optimized production technology, Receivers, Frequency estimation, Convergence, Adaptation models, Estimation, Signal processing algorithms,fourth-order statistics, I/Q imbalance, adaptive filter, low-IF, adaptive decorrelation, blind calibration, frequency-offset recovery
CITATION
Shafayat Abrar, Azzedine Zerguine, Asoke K. Nandi, "Blind Adaptive Compensation of I/Q Mismatch and Frequency Offset in Low-IF Receivers", 2014 12th International Conference on Frontiers of Information Technology (FIT), vol. 00, no. , pp. 127-132, 2014, doi:10.1109/FIT.2014.32
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