Comparative Analysis of Three Digital Signal Processing Techniques for 2D Combination of Echographic Traces Obtained from Ultrasonic Transducers Located at Perpendicular Planes - Applications of Digital Signal Processing - page 93

5 5

4 4

3 3

2 2

1 1

0 0

-1 -1

-2 -2

-3 -3

-4 -4

-5 -5

0 2 4 6 8 10 12 14 16 µsec 18 0 2 4 6 8 10 12 14 16 µsec 18

Transducer H1 Transducer H2

5 5

4 4

3 3

2 2

1 1

0 0

-1 -1

-2 -2

-3 -3

-4 -4

-5 -5

0 2 4 6 8 10 12 14 16 µsec 18 0 2 4 6 8 10 12 14 16 µsec 18

Transducer H3 Transducer H4

5 5

4 4

3 3

2 2

1 1

0 0

-1 -1

-2 -2

-3 -3

-4 -4

-5 -5

0 2 4 6 8 10 12 14 16 µsec 18 0 2 4 6 8 10 12 14 16 µsec 18

Transducer V1 Transducer V2

5 5

4 4

3 3

2 2

1 1

0 0

-1 -1

-2 -2

-3 -3

-4 -4

-5 -5

0 2 4 6 8 10 12 14 16 µsec 18 0 2 4 6 8 10 12 14 16 µsec 18

Transducer V3 Transducer V4

Fig. 7. Ultrasonic traces from the 8 transducers of figure 4 with a simulated SNR ini = 3 dB.