Robust Normalized Subband Adaptive Filter Algorithm with a Sigmoid-Function-Based Step-Size Scaler and Its Convex Combination Version

Figure 6

NMSD learning curves comparison of the SSAF, SSS-NSAF-1, SSS-NSAF-2, the proposed SL₀-SSS-NSAF, and SL₀-SSS-IPNSAF algorithms for sparse impulse response with . SSAF: , ; SSA-NSAF-1: , ; SSA-NSAF-2: , ; SL₀-SSS-NSAF: , , , , ; SL₀-SSS-IPNSAF: , , , , , , .