SNR | 方法 | N1 | N2 | N3 | N4 | N5 | N6 | N7 |
−5 | STFT | 1.3246 | 1.1186 | 1.007 | 1.5551 | 1.6102 | 2.5401 | 1.7322 |
GFT | 1.2415 | 1.0671 | 1.0258 | 1.4989 | 1.5057 | 2.4739 | 1.6362 | |
0 | STFT | 1.7787 | 1.5979 | 1.4635 | 1.9823 | 2.0225 | 2.7083 | 2.0827 |
GFT | 1.7098 | 1.5493 | 1.4477 | 1.921 | 1.932 | 2.6787 | 2.0297 | |
5 | STFT | 2.1521 | 2.0328 | 1.9093 | 2.3017 | 2.3359 | 2.8241 | 2.3187 |
GFT | 2.1138 | 1.9992 | 1.8925 | 2.2646 | 2.2831 | 2.841 | 2.3178 | |
10 | STFT | 2.409 | 2.3447 | 2.2497 | 2.5176 | 2.5525 | 2.8974 | 2.4852 |
GFT | 2.408 | 2.3458 | 2.2479 | 2.5171 | 2.5439 | 2.9607 | 2.5204 | |
15 | STFT | 2.5777 | 2.55 | 2.4768 | 2.662 | 2.6971 | 2.9415 | 2.6046 |
GFT | 2.6072 | 2.5901 | 2.4989 | 2.6941 | 2.7259 | 3.0336 | 2.6659 | |
20 | STFT | 2.6903 | 2.6847 | 2.6243 | 2.7588 | 2.7948 | 2.9662 | 2.6928 |
GFT | 2.7403 | 2.7571 | 2.6696 | 2.8155 | 2.8479 | 3.0739 | 2.7739 |