Spectral probability density as a tool for ambient noise analysis

被引：73

作者：

Merchant, Nathan D. ^{[1
]}

Barton, Tim R. ^{[2
]}

Thompson, Paul M. ^{[2
]}

Pirotta, Enrico ^{[2
]}

Dakin, D. Tom ^{[3
]}

Dorocicz, John ^{[3
]}

机构：

[1] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

[2] Univ Aberdeen, Lighthouse Field Stn, Cromarty IV11 8YL, Ross, Scotland

[3] Univ Victoria, Ocean Networks Canada, Victoria, BC V8W 2Y2, Canada

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2013年 / 133卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

OCEAN;

D O I：

10.1121/1.4794934

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper presents the empirical probability density of the power spectral density as a tool to assess the field performance of passive acoustic monitoring systems and the statistical distribution of underwater noise levels across the frequency spectrum. Using example datasets, it is shown that this method can reveal limitations such as persistent tonal components and insufficient dynamic range, which may be undetected by conventional techniques. The method is then combined with spectral averages and percentiles, which illustrates how the underlying noise level distributions influence these metrics. This combined approach is proposed as a standard, integrative presentation of ambient noise spectra. (C) 2013 Acoustical Society of America

引用

页码：EL262 / EL267

页数：6

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