Table 2.
SNR (dB) values for the experimental image shown in Fig. 9.
| Depth (mm) | DAS | DMAS | NL_2 | NL_3 | NL_4 | NL_5 |
|---|---|---|---|---|---|---|
| 7.1 | 35.8 | 44.0 | 44.0 | 50.7 | 56.4 | 59.9 |
| 11.3 | 24.8 | 29.4 | 29.4 | 34.1 | 39.4 | 43.9 |
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