%0 Thesis %A Wang, Yiming %D 2019 %T PROPAGATION OF EN-ROUTE AIRCRAFT NOISE %U https://hammer.purdue.edu/articles/thesis/PROPAGATION_OF_EN-ROUTE_AIRCRAFT_NOISE/11094200 %R 10.25394/PGS.11094200.v1 %2 https://hammer.purdue.edu/ndownloader/files/19644008 %K noise prediction %K Lorentz Transformation %K wave propagation %K Acoustics and Noise Control (excl. Architectural Acoustics) %X The prediction of the noise generated by en-route aircraft is gradually gaining in importance as the number of aircraft increases over the last few decades. While the studies of outdoor sound propagation have been focused on near ground propagation, the case when the sound source is high above the ground has not attracted much attention. At the same time there has been a lack of high-quality aircraft acoustic validation data sets that contain detailed acoustic, meteorology, and source-receiver position data. The DISCOVER-AQ data set, which was collected by Volpe in support of the Federal Aviation Administration (FAA), has greatly helped with studying the directivity and the Doppler effect in the comparison between simulation results and measurements.