Method and Apparatus of Cloaking for Acoustic Waves Considering Generalized Time Dependency

摘要

Disclosed is a method and a device for concealing a sound wave considering generalized time dependency. A sound wave concealment method according to an embodiment of the present invention corresponds to the electromagnetic wave mathematical model based on a correlation between a predetermined acoustic wave transfer mathematical model for sound wave propagation and a predetermined electromagnetic wave mathematical model for electromagnetic wave Converting into a sound wave concealment mathematical model including a time variable for time dependency; Deriving a target characteristic of the meta-material using the transformed acoustic concealment mathematical model; And disposing the obtained meta material having the target characteristic so as to surround the area including the object, thereby blocking the area from the sound waves.