The origin of the time reversal (TR) concept traces back to time
reversal acoustics [1–3]. In time reversal acoustics, an input bulk
wave can be exactly reconstructed at the source location if a
response signal measured at a distinct location is time-reversed
and reemitted to the original excitation location. This phenomenon is referred to as TR of bulk waves and has been used in many
applications including ultrasonic nondestructive evaluation and
underwater acoustics.