The beam forming properties of a concave spherical reflector with an on-axis receiver

被引：6

作者：

Deane, GB ^{[1
]}

机构：

[1] Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1999年 / 106卷 / 03期

关键词：

D O I：

10.1121/1.427159

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A wave-theoretical formulation for the on-axis scattering of a concave, spherical reflector with a pressure release surface is presented. Expressions for the reflector gain and half-power beam width are derived using a stationary phase analysis of the radiation integral arising from the Kirchhoff; Helmholtz scalar diffraction theory. The gain is shown to scale with frequency and the beam width scales inversely with frequency. The results of the analysis compare well with data collected from a 3-m spherical dish in both air and underwater calibrations. (C) 1999 Acoustical Society of America. [S0001-4966(99)04809-2].

引用

页码：1255 / 1261

页数：7

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