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. Author manuscript; available in PMC: 2007 May 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2007 Feb;54(2):301–312. doi: 10.1109/tuffc.2007.244

Fig. 3.

Fig. 3

The azimuthal PSF for different offsets between the transmit and receive foci of the tracking beam. At an offset of 0 mm, the PSF is identical to that used in conventional tracking. All PSFs are normalized relative to the peak of the PSF with no offset.