Comparison and Validation of Acoustic Response Models for Wind Noise Reduction Pipe Arrays
Comparison and Validation of Acoustic Response Models for Wind Noise Reduction Pipe Arrays
复制标题
风噪声降低管阵列声响应模型的比较和验证
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
David Brown
中科院分区：
文献类型：
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作者：
J. Marty;S. Denis;T. Gabrielson;M. Garcés;David Brown
摘要国际监测系统(IMS)次声分量的探测能力与其风噪降噪系统的性能密切相关。在所有IMS次声测量系统中实施的风降噪解决方案包括通过管道网络连接到次声传感器的进气口的空间分布。这种通常被称为“管阵”的系统已经在作战条件下证明了它的有效性。本文的目的是给出三种不同的管阵声学响应模型的比较和验证结果。描述了模型的特性和针对一组定义的管阵构型所获得的结果。然后介绍了使用新开发的次声发生器进行的现场实验，该实验专门用于验证这些模型。模型声响应与经验声学响应的比较表明，三种模型中的两种模型都可以很好地估计声学参数。
AbstractThe detection capability of the infrasound component of the International Monitoring System (IMS) is tightly linked to the performance of its wind noise reduction systems. The wind noise reduction solution implemented at all IMS infrasound measurement systems consists of a spatial distribution of air inlets connected to the infrasound sensor through a network of pipes. This system, usually referred to as “pipe array,” has proven its efficiency in operational conditions. The objective of this paper is to present the results of the comparison and validation of three distinct acoustic response models for pipe arrays. The characteristics of the models and the results obtained for a defined set of pipe array configurations are described. A field experiment using a newly developed infrasound generator, dedicated to the validation of these models, is then presented. The comparison between the modeled and empirical acoustic responses shows that two of the three models can be confidently used to estimate p...