Research of blind equalization algorithm based on fifth–second order normalized cumulant in complex system

According to the symmetric-antisymmetric transform principle, a fifth-second order normalized cumulant blind equalization algorithm was proposed. The algorithm overcame the disadvantage that the channel equalization was impossible for the symmetric signal because its odd order cumulant equaled to zero. The computer simulation shows that the convergence and the steady residual error of the algorithm are better than congener algorithms and its realization is simple.