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Table 4 Computational complexity of the family of NSAF algorithms

From: A low computational complexity normalized subband adaptive filter algorithm employing signed regressor of input signal

Algorithm Multiplications
NSAF[8] 3M + 3NK + 1
SPU-NSAF[11] 2M + SL + 3NK + 1
DS-NSAF[12] \( \left(1+2\frac{N(k)}{N}\right)M+3 NK+N \)
FS-NSAF[13] \( 2M+\left(\frac{N_s}{N}\right)M+3\mathrm{NK}+1 \)
Proposed SR-NSAF M + 3NK + 1