Mean-square performance of the family of subband affine projection algorithms

Subband affine projection (SAP) algorithm which combines the advantages of the affine projection algorithm (APA) and subband adaptive filtering (SAF) has been proposed for achieving the improved convergence performance. In this paper, the family of SAP algorithms is presented. Following this, the mean-square performance for this family of SAP algorithms is derived. The derivation process is based on energy conservation arguments and does not limit the regressors to being a specific random distribution. Simulation results illustrate the efficiency for this analysis.