Soundpulse technique is often used in the underwater acoustic measurement, but it has transients, so it can not be used in low frequencies.
脉冲声技术是一种很常用的水声测量技术，但由于脉冲声存在着瞬态过程，严重影响了它在低频下的使用。
2
This paper presents a theoretical analysis of the reflection of a soundpulse by the plane interface between the air and an idealized porous medium.
本文在理论上分析球面脉冲声波在空气和理想的多孔性媒质界面上的反射问题。
3
This paper studies the determination of datum station with GPS and the computation problems of the soundpulse signal received by the datum station of echo pulse receiver under water.