PARAMETRIC ACOUSTIC SOURCES OF TRANSIENT SIGNALS

被引：17

作者：

MOFFETT, MB ^{[1
]}

MELLO, P ^{[1
]}

机构：

[1] UNIV RHODE ISL,KINGSTON,RI 02881

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1979年 / 66卷 / 04期

关键词：

D O I：

10.1121/1.383312

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A theoretical treatment is formulated for transient, or broadband, parametric acoustic sources, i.e., parametric sources using an arbitrarily modulated primary carrier signal. This treatment makes use of previously calculated characteristics for steady-state, or narrow band, parametric sources. The theory does not include saturation effects. A Fortran computer program, using Fast Fourier Transforms, generates spectra and waveforms for specified modulation envelopes. Experimental results, in good agreement with the theory, are presented for a 30-μs pulse applied to a 4 mm active diameter, 2 MHz quartz crystal underwater projector. © 1979, American Association of Physics Teachers. All rights reserved.

引用

页码：1182 / 1187

页数：6

共 21 条

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