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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2021 Mar 26;68(4):1131–1143. doi: 10.1109/TUFFC.2020.3034518

Fig. 2.

Fig. 2.

REFoCUS beamforming. (a) Focused transmission from M elements. Array elements produce individual diverging waves delayed to form a coherent converging wavefront. (b) One sample diverging wave synthesized by REFoCUS using N transmissions, coherently reinforcing the desired component from different focused waves by applying time delays to the recorded data.