Method and Apparatus of Cloaking for Acoustic Waves Using Scatter of Spatial Periodicity

摘要

A method of concealing a sound using a scattering medium having spatial periodicity and an apparatus therefor are disclosed. A method of concealing a sound wave according to an embodiment of the present invention includes deriving a target characteristic of a meta-material based on a correlation between a predetermined acoustic wave transfer mathematical model for sound wave transmission and a predetermined electromagnetic wave mathematical model for electromagnetic wave; Arranging the scattering medium having a predetermined density of the medium to have the spatial periodicity so as to have the derived target characteristics; And arranging the meta-material including the scattering medium arranged to have the spatial periodicity so as to surround the region including the object, thereby blocking the region from sound waves.;