AEROACOUSTIC MEASUREMENTS IN WIND TUNNELS USING ADAPTIVE BEAMFORMING METHODS

被引：20

作者：

GRAMANN, RA

MOCIO, JW

机构：

[1] Applied Research Laboratories, University of Texas, Austin, Texas 78713-8029

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1995年 / 97卷 / 06期

关键词：

D O I：

10.1121/1.412386

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Tests have been performed in a conventional low speed wind tunnel using a linear array of microphones to measure the received source level of a speaker projecting within the test section. Conventional, or delay and sum beamforming (CBF), and adaptive beamforming (ABF) have been employed to determine the source bearing and the received source level. Both narrow-band and broadband sources were used, with two different array configurations and several array orientations. The results show that ABF can be used in such an environment and that it rejects much of the multipath. Consequently more accurate broadband measurements are obtained with ABF than with CBF. © 1995, Acoustical Society of America. All rights reserved.

引用

页码：3694 / 3701

页数：8

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