نتایج جستجو برای: noise abatement

تعداد نتایج: 197907  

Journal: :The Journal of the Acoustical Society of America 1942

2017
Raoul Schabinger Tobias Derucki

Abstract INAA – flight and noise monitoring at Frankfurt Airport visualizes flights and measures of noise made around Frankfurt airport. It calculates emissions of single flights and displays height profiles of arriving and departing planes. So-called “flight doors” describe no-flight-zones for noise abatement. They show in a three-dimensional way how planes are within horizontal and lateral li...

2004
Sofiane Aoudia José de Freitas Pacheco Tania Regimbau Giorgio Frossati

For future configurations, we study the relation between the abatement of the noise sources and the Signal to Noise Ratio (SNR) for coalescing binaries. Our aim is not the proposition of a new design, but an indication to where in the bandwidth or for which noise source, a noise reduction would be most efficient. We take VIRGO as reference for our considerations. It is identified that i) the re...

2009
X. Prats J. Quevedo V. Puig

This paper gives an overview of aircraft trajectory management aimed at producing noise abatement procedures. Area Navigation (RNAV) concepts play an important role in the design of flexible and, therefore, noise friendly depart or approach procedures. In addition, the lowest dispersion of RNAV tracks help to contain noise footprints in a smaller area if compared with footprints that are produc...

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