Variable Step-size Constellation Match Multiple Model Algorithm
Baojun Lin · Jisuanji gongcheng · 2012
A new variable step-size algorithm is proposed to reduce the residual error and the phase error caused by the mismatch of the Constant Modulu Algorithm(CMA) and constellations of the high-order QAM signals.The new algorithm takes the error energy as the step-size control criteria to get a balance between the convergence rate and the residual error.Simulation experimental result shows that compared with other blind equalization algorithm,the new algorithm gets a better residual error and phase recovery,and keeps the robustness unchanged.