Table 2.

SNR (dB) values at the different depths

Depth(mm)	DAS	DAS+CF	MV	MV+CF	DAS+HRCF,
25	48.9	66.8	59.8	80.6	90.9
30	46.6	64.5	57.2	77.9	87.9
35	44.2	62.0	54.8	75.4	85.4
40	42.4	60.2	53.2	73.9	84.0
45	40.8	58.5	51.2	71.8	81.6
50	39.3	57.2	49.5	70.32	79.8
55	37.8	55.4	47.8	68.3	77.7