Table 5 Complexity analysis of the NSS-FxLMS algorithm
From: Robust adaptive algorithm for active control of impulsive noise
Equations | Operations | * | +/− | ÷ |
|---|---|---|---|---|
1 | \( {x}^{\prime }{(n)}_{1\times 1}=\widehat{s}{(n)}_{1\times M}\ast x{(n)}_{M\times 1} \) | M | M − 1 | – |
2 | y(n)1x1 = w T(n)1xL * x(n) Lx1 | L | L − 1 | – |
3 | w(n + 1) Lx1 = w(n) Lx1 − μ(n)1x1 * e(n)1x1 * x′(n)1xL | L + 1 | L | – |
4 | \( \mu {(n)}_{1\times 1}=\frac{\overline{\mu {(n)}_{1\times 1}}}{\delta +{x}^T{(n)}_{1\times L}\ast x{(n)}_{L\times 1}+E(n)} \) | L | L + 1 | 1 |
5 | e(n)1x1 = d(n)1x1 − y s (n)1x1 | – | 1 | – |
6 | y s (n)1x1 = s(n)1xM * y(n) Mx1 | M | M − 1 | – |
7 | E(n)1x1 = λE(n − 1)1x1 + (1 − λ)E 2(n)1x1 | 3 | 2 | |
Total | 3L + 2M + 4 | 3L + 2M + 1 | 1 |