297463.fig.003a
(a)
297463.fig.003b
(b)
297463.fig.003c
(c)
297463.fig.003d
(d)
Figure 3: (a) Optimal transmitted ternary signal obtained by genetic algorithm, (b) Signal at the transducer output (Figure 1), when was the optimal ternary signal, (c) the radiofrequency line, and (d) their spectra.