A Modified FBLMS Algorithm Research and Performance Analysis

As there is a conflict about block step size between the requirements of the convergence velocity and parameters´ maladjustment within FBLMS algorithm, a modified FBLMS algorithm is well presented in this paper which uses a variable block step size to solve the contradiction between convergence rate and precision. The modified FBLMS algorithm is simulated in the MATLAB platform. The simulation results prove that this algorithm not only has a faster convergence speed, a faster tracking speed and a smaller stationary error, but also has a better anti-jamming capability.