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A Numerical Transient Analysis for Acoustic Field Including Reflective Boundary by using PSW Method

For applications of ultrasonic technique such as imaging and fish detection, it is important to estimate the paths of propagation of received waves since the direct wave and reflected or refracted waves must be separated to pick out desired information from the received signal. However, most conventional methods have not analysed this problem sufficiently. Therefore, the authors have developed a new method called “propagation of separated wavefront” (PSW). In this paper we apply this method to transient analysis of a reflective sound field.