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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: IEEE Trans Med Imaging. 2010 Oct 18;30(2):512–522. doi: 10.1109/TMI.2010.2087768

Fig. 8.

Fig. 8

Amplitude and phase distortion without and with control. The RF feedback signal is a sample of the power amplifier output voltage.