Advances in Acoustics and Vibration / 2009 / Article / Tab 1

Research Article

Sequentially Adapted Parallel Feedforward Active Noise Control of Noisy Sinusoidal Signals

Table 1

Performance comparison of the proposed separation-based parallel ANC and conventional single-filter ANC for different tones and SNR combination.  (dB) is the maximum possible NAL.

NumberNumber of sinusoids, Proposed PFANC NAL (dB) Single-Filter ANC NAL (dB) from (62)

1 1 10 25.57 24.61 26.38
2 1 20 33.69 20.16 36.33
3 1 30 44.56 25.97 46.24
4 1 40 53.03 35.60 56.24
5 2 10 31.83 33.21 34.20
6 2 20 42.88 32.20 44.09
7 2 30 52.34 35.91 54.05
8 2 40 58.00 44.64 64.00
9 3 10 31.96 31.86 33.00
10 3 20 41.99 30.69 43.00
11 3 30 50.03 35.34 53.80
12 3 40 55.86 44.43 64.00
13 4 10 31.54 31.43 33.00
14 4 20 40.36 30.5 42.67
15 4 30 48.32 35.49 53.64
16 4 40 58.40 44.35 63.00
21 7 10 31.45 30.05 31.72
22 7 20 41.48 41.87 42.05
23 7 30 49.03 44.65 54.02
24 7 40 57.40 47.65 62.95
17 8 10 31.45 30.64 30.64
18 8 20 44.40 42.14 43.25
19 8 30 42.14 29.52 46.79
20 8 40 55.40 47.06 63.00

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