Optimization of Contrast-to-Tissue Ratio by Adaptation of Transmitted Ternary Signal in Ultrasound Pulse Inversion Imaging

Figure 3

(a) Optimal transmitted ternary signal 𝑥₁(𝑛) obtained by genetic algorithm, (b) Signal 𝑝(𝑛) at the transducer output (Figure 1), when 𝑤(𝑛) was the optimal ternary signal, (c) the radiofrequency line, and (d) their spectra.

(a)

(b)

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(d)