A 3D Localization Method of Multiple Acoustic Sources Using Microphone Array

Localization technology of acoustic source is widely used in detection and wireless communications.

In some references, many researchers have addressed the methods of 1D and 2D estimating the DOA far field multiple acoustic sources. However, 3D localization method that includes distance information is poorly introduced. That’s why because in near field, the distance can be directly calculated but in far field, it can never. And also the distance information can be indirectly calculated relative easily in case that acoustic source is one or they are narrowband acoustic sources. However, it is difficult to obtain the distance information of wideband multiple sources. This paper presented a new method to estimate distance information of narrowband multiple acoustic sources. The simulation examples indicated the suggesting method can be accurately estimated locations of multiple sound sources.