Two-Dimensional Decomposition LUT Correction for I/Q Imbalance in Reconfigurable Wideband Receivers

A novel algorithm called two-dimensional decomposition Look-Up-Table (TDD-LUT) is proposed in this paper, to address the I/Q imbalance issue facing wideband, uncooperative multi-signals spectrum surveillance applications. TDD-LUT decomposes mixed-mismatches and reconstructs compensation process according to different receivers configurations. Through MATLAB&SIMULINK simulation, The algorithm is demonstrated to improve 20-40dB image frequency rejection ratio (IRR) in a reconfigurable wideband receiver case.