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. Author manuscript; available in PMC: 2023 Jun 6.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2022 Jan 27;69(2):534–542. doi: 10.1109/TUFFC.2021.3125670

Fig. 6.

Fig. 6.

(a) Sound speed profile of the skull segment used for the experiment and used in the simulations, derived from micro-CT scans. The sound speed values in the skull were then scaled by values from 0.8 to 1.2 (±20 %) from the nominal case. (b) Effect of sound speed error on PAM source localization error magnitude for the indicated frequencies, compared to the mean wavelength at 1 MHz. (c) HASA-PAMs formed at 1 MHz for the nominal and extreme case sound speeds. The 2 cm scale bar is constant for all PAMs.