Research on Equalization in High Symbol Rate Burst Transmission

The variable step-size LMS algorithm with higher convergence rate and less computation is confirmed to be employed in high symbol rate transmission by comparing several equalization algorithms.And a new hybrid equalization scheme is proposed to reduce the training sequence overhead in the high symbol rate signal and improve the transmission efficiency further.In the new hybrid scheme combining well the characteristics of the data-aided equalization and the blind equalization,the equalization process is divided into two phases,and the data-aided equalization phase is required to provide an initial vector precise enough,which guides the blind equalization phase to get to the point of convergence.The simulation results show that the hybrid equalization scheme can reach convergence and work well with shorter training sequence in use.