Complex block orthogonal gradient adaptive-based algorithm with conjugate gradient principle

In this paper, a complex block orthogonal gradient adaptive-based alogrithm is presented. In order to enhance convergence rate, a complex block conjugate normalised orthogonal gradient adaptive algorithm is introduced based on conjugate gradient principle. The orthogonal direction mechanism is used to update the filter coefficients in stead of the negative gradient direction method. Simulation results confirm that the proposed algorithm achieves the convergence rate with comparable accuracy, relative to the existing technique.