The Community for Technology Leaders
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
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
82 ms
(Ver 3.3 (11022016))