Step-Size Control for the Normalized Subb and Adaptive Filter

摘要

The normalized subband adaptive filter (NSAF) proposed by Lee and Gan is promising.Since its step-size is fixed,however,it must carry out a tradeoff between fast convergence rate and low misadjustment.According to the functional relationship between mean-square deviation (MSD) and step-size,we propose a step-size control method to address the problem above.Simulation results show that our proposed method can obtain good convergence performance.