TY - JOUR
AU - 
AB - Imperfections in quadrature modulators (QMs), such as inphase and quadrature (IQ) imbalance, can severely impact the performance of power amplifier (PA) linearization systems, in particular in adaptive digital predistorters (PDs). In this paper, we first analyze the effect of IQ imbalance on the performance of a memory orthogonal polynomials predistorter (MOP PD), and then we propose a new adaptive algorithm to estimate and compensate the unknown IQ imbalance in QM. Unlike previous compensation techniques, the proposed method was capable of online IQ imbalance compensation with faster convergence, and no special calibration or training signal
TI - New Adaptive Method for IQ Imbalance Compensation of Quadrature Modulators in Predistortion Systems
JF - EURASIP Journal on Advances in Signal Processing
DO - 10.1155/2009/181285
DA - 2009-09-16
UR - https://www.deepdyve.com/lp/wiley/new-adaptive-method-for-iq-imbalance-compensation-of-quadrature-J7wKlhynwF
VL - 2009
IS - 2009
DP - DeepDyve
ER -