Peng Jun1, Guo Jianbing1, Chen Dongjin1. Research on a union carrier recovery algorithm for high-order QAM[J]. 2011,(3):20-22. DOI: 10.13756/j.gtxyj.2011.03.012.
a type of carrier blind frequency offset estimation algorithm based on nonlinear transformation is discussed and a simplified algorithm for the scenario of medium and high SNR is proposed by analyzing the estimated minimum mean square error.And then slight frequency and phase offsets are tracked by using PLL technology.Simulation results verify the feasibility and effectiveness of this algorithm
thus obtaining a simplified carrier recovery method for high-order QAM.