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ESDU - An introduction to aircraft noise lateral attenuation.

Organization: ESDU
Publication Date: 1 November 1981
Page Count: 11
scope:

ESDU 81035 gives guidance on the estimation of lateral attenuation of aircraft noise from noise measurements. Lateral attenuation is defined as the difference between the under-the-flightpath and sideline free-field levels where the propagation range of the two sound levels is the same. A knowledge of aircraft noise lateral attenuation is required for the evaluation of ground noise levels.

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