Matches in SemOpenAlex for { <https://semopenalex.org/work/W2165390460> ?p ?o ?g. }
Showing items 1 to 66 of
66
with 100 items per page.
- W2165390460 abstract "A new measurement device has been invented at the Naval Research Laboratory which images instantaneously the intensity vector throughout a three-dimensional volume nearly a meter on a side. The measurement device consists of a nearly transparent spherical array of 50 inexpensive microphones optimally positioned on an imaginary spherical surface of radius 0.2m. Front-end signal processing uses coherence analysis to produce multiple, phase-coherent holograms in the frequency domain each related to references located on suspect sound sources in an aircraft cabin. The analysis uses either SVD or Cholesky decomposition methods using ensemble averages of the cross-spectral density with the fixed references. The holograms are mathematically processed using spherical NAH (nearfield acoustical holography) to convert the measured pressure field into a vector intensity field in the volume of maximum radius 0.4 m centered on the sphere origin. The utility of this probe is evaluated in a detailed analysis of a recent in-flight experiment in cooperation with Boeing and NASA on NASA s Aries 757 aircraft. In this experiment the trim panels and insulation were removed over a section of the aircraft and the bare panels and windows were instrumented with accelerometers to use as references for the VAIM. Results show excellent success at locating and identifying the sources of interior noise in-flight in the frequency range of 0 to 1400 Hz. This work was supported by NASA and the Office of Naval Research." @default.
- W2165390460 created "2016-06-24" @default.
- W2165390460 creator A5013204259 @default.
- W2165390460 creator A5053198221 @default.
- W2165390460 creator A5068140717 @default.
- W2165390460 date "2006-01-01" @default.
- W2165390460 modified "2023-09-27" @default.
- W2165390460 title "Tracking energy flow using a Volumetric Acoustic Intensity Imager (VAIM)" @default.
- W2165390460 cites W1540509760 @default.
- W2165390460 cites W2018742520 @default.
- W2165390460 cites W2048978695 @default.
- W2165390460 cites W2306493610 @default.
- W2165390460 cites W2725155761 @default.
- W2165390460 hasPublicationYear "2006" @default.
- W2165390460 type Work @default.
- W2165390460 sameAs 2165390460 @default.
- W2165390460 citedByCount "0" @default.
- W2165390460 crossrefType "journal-article" @default.
- W2165390460 hasAuthorship W2165390460A5013204259 @default.
- W2165390460 hasAuthorship W2165390460A5053198221 @default.
- W2165390460 hasAuthorship W2165390460A5068140717 @default.
- W2165390460 hasConcept C111919701 @default.
- W2165390460 hasConcept C120665830 @default.
- W2165390460 hasConcept C121332964 @default.
- W2165390460 hasConcept C187590223 @default.
- W2165390460 hasConcept C203718221 @default.
- W2165390460 hasConcept C24890656 @default.
- W2165390460 hasConcept C41008148 @default.
- W2165390460 hasConcept C63981117 @default.
- W2165390460 hasConcept C89805583 @default.
- W2165390460 hasConceptScore W2165390460C111919701 @default.
- W2165390460 hasConceptScore W2165390460C120665830 @default.
- W2165390460 hasConceptScore W2165390460C121332964 @default.
- W2165390460 hasConceptScore W2165390460C187590223 @default.
- W2165390460 hasConceptScore W2165390460C203718221 @default.
- W2165390460 hasConceptScore W2165390460C24890656 @default.
- W2165390460 hasConceptScore W2165390460C41008148 @default.
- W2165390460 hasConceptScore W2165390460C63981117 @default.
- W2165390460 hasConceptScore W2165390460C89805583 @default.
- W2165390460 hasLocation W21653904601 @default.
- W2165390460 hasOpenAccess W2165390460 @default.
- W2165390460 hasPrimaryLocation W21653904601 @default.
- W2165390460 hasRelatedWork W1625572129 @default.
- W2165390460 hasRelatedWork W1697563566 @default.
- W2165390460 hasRelatedWork W1978306376 @default.
- W2165390460 hasRelatedWork W1982586778 @default.
- W2165390460 hasRelatedWork W1990449377 @default.
- W2165390460 hasRelatedWork W2002679155 @default.
- W2165390460 hasRelatedWork W2007801734 @default.
- W2165390460 hasRelatedWork W2026330430 @default.
- W2165390460 hasRelatedWork W2026911724 @default.
- W2165390460 hasRelatedWork W2034658554 @default.
- W2165390460 hasRelatedWork W2166603506 @default.
- W2165390460 hasRelatedWork W2345548335 @default.
- W2165390460 hasRelatedWork W2909545689 @default.
- W2165390460 hasRelatedWork W3197908401 @default.
- W2165390460 hasRelatedWork W321049924 @default.
- W2165390460 hasRelatedWork W642729412 @default.
- W2165390460 hasRelatedWork W746573178 @default.
- W2165390460 hasRelatedWork W2851865303 @default.
- W2165390460 hasRelatedWork W2853104027 @default.
- W2165390460 hasRelatedWork W2958343785 @default.
- W2165390460 isParatext "false" @default.
- W2165390460 isRetracted "false" @default.
- W2165390460 magId "2165390460" @default.
- W2165390460 workType "article" @default.