OBJECT PROBING DEVICE, OBJECT PROBING PROGRAM, AND OBJECT PROBING METHOD

摘要

An object probing device includes: a sound source which projects a sound pulse within a propagation environment; a transducer array disposed in a region for receiving the forward scattered wave scattered forward from the object existing in the propagation environment; an addition processing unit which extracts only a signal of the forward scattered wave by applying vector addition processing on a reference signal in a reference sound field received by the transducer array when the object does not exist in the propagation environment and a mixed signal in a probe sound field received when the object exists; a time reversal processing unit which generates a time-reversed sound pulse by applying time reversal processing on the extracted forward scattered wave; and a phase conjugation determination unit which checks whether or not a phase conjugacy is established in the propagation environment by employing a passive phase conjugation to the time-reversed sound pulse.