Abstract: By the analysis of odd symmetry error function blind equalization algorithm based Decision Feedback Equalizer（OFA-DFE），variable momentum factor momentum odd symmetry error function blind equalization algorithm based decision feedback equalizer（VMFMOFA-DFE） is proposed.The proposed algorithm uses error function with characteristics of odd symmetry to reduce mean square error，in order to further improve the performance of the algorithm using variable factors to control the momentum term and introducing variable momentum factor to decision feedback equalizer to adjust forward equalizer of decision feedback.Simulation tests with underwater acoustic channel indicate that the proposed algorithm has faster convergence rate and less mean square error.

摘要： 在分析奇对称误差函数判决反馈盲均衡算法（OFA-DFE，Odd symmetry error Function blind equalization Algorithm based Decision Feedback Equalizer）基础上，提出了基于奇对称误差函数变动量因子判决反馈动量盲均衡算法（VMFMOFA-DFE，Variable Momentum Factor Momentum OFA-DFE）。该算法采用具有奇对称性的误差函数来减少均衡器的均方误差，利用变因子的思想对动量项进行控制，并把变动量因子引入到判决反馈算法中，对判决反馈的前向权进行调整，以进一步提高算法的性能。水声信道的仿真结果表明，该算法具有较快的收敛速度和较小的均方误差。