ISO 18405:2017
Underwater acoustics — Terminology
ISO 18405:2017 defines terms and expressions used in the field of underwater acoustics, including natural, biological and anthropogenic (i.e. man-made) sound. It includes the generation, propagation and reception of underwater sound and its scattering, including reflection, in the underwater environment including the seabed (or sea bottom), sea surface and biological organisms. It also includes all aspects of the effects of underwater sound on the underwater environment, humans and aquatic life. The properties of underwater acoustical systems are excluded.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
3.1.1 General
3.1.2 Acoustical field quantities
3.1.3 Acoustical power quantities
3.1.4 Logarithmic frequency intervals
3.1.5 Other acoustical quantities
3.2 Levels used in underwater acoustics
3.2.1 Levels of acoustical power quantities
3.2.2 Levels of acoustical field quantities
3.3 Terms for properties of underwater sound sources
3.3.1 Source waveforms and factors
3.3.2 Source levels
3.4 Terms related to propagation and scattering of underwater sound
3.4.1 Propagation
3.4.2 Scattering
3.5 Terms for properties of underwater sound signals
3.5.1 Sound signals
3.6 Terms related to sonar equations
3.6.1 General
3.6.2 Sonar equations and sonar equation terms
3.7 Terms related to underwater bioacoustics
3.7.1 Auditory frequency weighting
3.7.2 Sound reception
3.7.3 Sound production
Annex A (informative) Alphabetical index
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
3.1.1 General
3.1.2 Acoustical field quantities
3.1.3 Acoustical power quantities
3.1.4 Logarithmic frequency intervals
3.1.5 Other acoustical quantities
3.2 Levels used in underwater acoustics
3.2.1 Levels of acoustical power quantities
3.2.2 Levels of acoustical field quantities
3.3 Terms for properties of underwater sound sources
3.3.1 Source waveforms and factors
3.3.2 Source levels
3.4 Terms related to propagation and scattering of underwater sound
3.4.1 Propagation
3.4.2 Scattering
3.5 Terms for properties of underwater sound signals
3.5.1 Sound signals
3.6 Terms related to sonar equations
3.6.1 General
3.6.2 Sonar equations and sonar equation terms
3.7 Terms related to underwater bioacoustics
3.7.1 Auditory frequency weighting
3.7.2 Sound reception
3.7.3 Sound production
Annex A (informative) Alphabetical index
Bibliography