Consideration of wide space positioning by array transmitter for the ultrasonic positioning system

Abstract

We have been developed the ultrasonic positioning system in order to realize high precision positioning with real time, with a simple and inexpensive system. Demonstration of prototype system proved that it is possible to actually measure accuracy of several centimeters. At present, we are studying to expand the positioning space by using array speaker transmitter. In this research, we report the transmission characteristics of array speakers by FDTD method acoustic wave simulation.