Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Series of sequential transcranial pitch-catch waveforms as a function of the angular position of the moveable transducer in figure~4 for traditional time-reversal focusing (top), employing spatial reciprocity for time-reversal focusing (middle), and subtracting the two sets of waveforms to determine their similarity (bottom).
