Robust affine projection subband adaptive filters under maximum correntropy criteria in impulsive noise

A novel improved subband adaptive filter under maximum correntropy criteria (MCC-APSAF), which combines the benefit of affine projection algorithm and subband adaptive filter algorithm, and can achieve better performance under impulsive noise. Since the conventional cost function is not robust against the impulsive interference, the MCC-APSAF algorithm proposed by this paper is obtained by maximizing cost function which is introduced in correntropy. Whenever the output of filter is corrupted by the impulsive noise, the proposed MCC-APSAF algorithm could get rid of the impact of impulsive on the coefficient vector update. Besides, the proposed MCC-APSAF algorithm exhibits better performance in term of convergence rate than the sign SAF (SSAF) and affine projection sign (APSSAF) algorithm under the impulsive interference. Simulations have carried out to demonstrate the performance of MCC-APSAF algorithm.