FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W88772647> ?p ?o ?g. }

• W88772647 abstract "Ambient noise is a key factor in determining the performance of underwater acoustic systems. Ambient noise is that sound received by an omni-directional sensor which is not from the sensor itself or the manner in which it is mounted. Noise from the sensor or its mounting is termed self-noise. Ambient noise is made up of contributions from many sources, both natural and anthropogenic. These sounds combine to give the continuum of noise against which all acoustic receivers have to detect the signals they are looking for. Ambient noise is deceptively easy to measure, just deploy a hydrophone, make a recording, transform into the frequency domain, and you then have the level and spectral characteristics of ambient noise. Unfortunately this is rarely adequate to fully characterise ambient noise and further difficulties may be introduced by the way the hydrophone is deployed. Ambient noise is made up of a number of contributions, each of which can vary in a random and/or cyclic manner. The cyclic variation may have a period corresponding to the tidal, diurnal, weekly, lunar, monthly or annual cycles. For any one application it is important to match the measurement time to the relevant cyclic variations. It is also important to consider how the raw acoustic data can be processed to reduce the information to manageable levels while still retaining the important factors. Noise radiated from a discrete source is called radiated noise and is measured in a similar manner to ambient noise. Measurements are usually made close to the noise source so that the radiated noise is sufficiently stronger than the ambient noise to ensure that it is the radiated noise being measured. Radiated noise can be highly directional so it is important to make a series of measurements around the source. If the characteristics of the individual contributions to ambient noise, including radiated noise from individual sources, are understood then it is possible to model the ambient noise field. For many applications this can considerably reduce the need for detailed, and expensive, field measurements. Making the ambient noise measurements can be hampered by poor measurement procedure. Care must be exercised to minimise the self-noise of the measurement equipment and the platform from which it is deployed. It is also important to consider the depth of the measurement sensor and any directional characteristics of both the sensor and the noise field. This paper will review how ambient noise can be measured, the length of time for which the measurements need to be made, and the equipment that should be used to collect the data. It will also consider how the data should be processed to obtain meaningful, but manageable, information." @default.
• W88772647 created "2016-06-24" @default.
• W88772647 creator A5046007749 @default.
• W88772647 date "2008-10-01" @default.
• W88772647 modified "2023-09-27" @default.
• W88772647 title "Measuring underwater ambient noise: problems and pitfalls" @default.
• W88772647 hasPublicationYear "2008" @default.
• W88772647 type Work @default.
• W88772647 sameAs 88772647 @default.
• W88772647 citedByCount "1" @default.
• W88772647 countsByYear W887726472014 @default.
• W88772647 crossrefType "journal-article" @default.
• W88772647 hasAuthorship W88772647A5046007749 @default.
• W88772647 hasConcept C100675267 @default.
• W88772647 hasConcept C111368507 @default.
• W88772647 hasConcept C115961682 @default.
• W88772647 hasConcept C121332964 @default.
• W88772647 hasConcept C127313418 @default.
• W88772647 hasConcept C154945302 @default.
• W88772647 hasConcept C163294075 @default.
• W88772647 hasConcept C187612029 @default.
• W88772647 hasConcept C203718221 @default.
• W88772647 hasConcept C205312793 @default.
• W88772647 hasConcept C24890656 @default.
• W88772647 hasConcept C2776328434 @default.
• W88772647 hasConcept C29265498 @default.
• W88772647 hasConcept C39432304 @default.
• W88772647 hasConcept C41008148 @default.
• W88772647 hasConcept C98083399 @default.
• W88772647 hasConcept C99498987 @default.
• W88772647 hasConceptScore W88772647C100675267 @default.
• W88772647 hasConceptScore W88772647C111368507 @default.
• W88772647 hasConceptScore W88772647C115961682 @default.
• W88772647 hasConceptScore W88772647C121332964 @default.
• W88772647 hasConceptScore W88772647C127313418 @default.
• W88772647 hasConceptScore W88772647C154945302 @default.
• W88772647 hasConceptScore W88772647C163294075 @default.
• W88772647 hasConceptScore W88772647C187612029 @default.
• W88772647 hasConceptScore W88772647C203718221 @default.
• W88772647 hasConceptScore W88772647C205312793 @default.
• W88772647 hasConceptScore W88772647C24890656 @default.
• W88772647 hasConceptScore W88772647C2776328434 @default.
• W88772647 hasConceptScore W88772647C29265498 @default.
• W88772647 hasConceptScore W88772647C39432304 @default.
• W88772647 hasConceptScore W88772647C41008148 @default.
• W88772647 hasConceptScore W88772647C98083399 @default.
• W88772647 hasConceptScore W88772647C99498987 @default.
• W88772647 hasLocation W887726471 @default.
• W88772647 hasOpenAccess W88772647 @default.
• W88772647 hasPrimaryLocation W887726471 @default.
• W88772647 hasRelatedWork W1194464648 @default.
• W88772647 hasRelatedWork W1488426852 @default.
• W88772647 hasRelatedWork W1979451954 @default.
• W88772647 hasRelatedWork W1988478337 @default.
• W88772647 hasRelatedWork W1999397639 @default.
• W88772647 hasRelatedWork W2007015154 @default.
• W88772647 hasRelatedWork W2044753405 @default.
• W88772647 hasRelatedWork W2090067884 @default.
• W88772647 hasRelatedWork W2100313624 @default.
• W88772647 hasRelatedWork W2508226162 @default.
• W88772647 hasRelatedWork W2517068459 @default.
• W88772647 hasRelatedWork W2549638164 @default.
• W88772647 hasRelatedWork W2749094344 @default.
• W88772647 hasRelatedWork W2906403535 @default.
• W88772647 hasRelatedWork W2941193112 @default.
• W88772647 hasRelatedWork W3022340993 @default.
• W88772647 hasRelatedWork W3130808975 @default.
• W88772647 hasRelatedWork W3154753505 @default.
• W88772647 hasRelatedWork W560182289 @default.
• W88772647 hasRelatedWork W1867704007 @default.
• W88772647 isParatext "false" @default.
• W88772647 isRetracted "false" @default.
• W88772647 magId "88772647" @default.
• W88772647 workType "article" @default.