Table 2 The mean and standard deviation of the RRMS errors of the spectrograms estimated from signals with different SNR levels based on the STFT, the MPWD methods, and the AD-PCNN methods (×10-4).
| Â | SNR (dB) | |||
|---|---|---|---|---|
Method | 0 | 5 | 10 |
|
STFT | 3.5 ± 1.1 | 3.5 ± 1.1 | 3.3 ± 1.0 | 3.2 ± 0.9 |
MPWD | 2.1 ± 1.1 | 2.1 ± 1.1 | 2.0 ± 1.0 | 2.0 ± 0.9 |
AD-PCNN | 1.9 ± 1.2 | 1.9 ± 1.2 | 1.8 ± 1.1 | 1.8 ± 1.0 |
