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Investigation of ground reflection and impedance from flyover noise measurements
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chapkis, R. L. Marsh, A. H. |
| Copyright Year | 1978 |
| Description | An extensive series of flyover noise tests was conducted for the primary purpose of studying meteorological effects on propagation of aircraft noise. The test airplane, a DC 9-10, flew several level-flight passes at various heights over a taxiway. Two microphone stations were located under the flight path. A total of 37 runs was selected for analysis and processed to obtain a consistant set of 1/3 octave band sound pressure levels at half-second intervals. The goal of the present study was to use the flyover noise data to deduce acoustical reflection coefficients and hence, acoustical impedances. |
| File Size | 7188924 |
| Page Count | 143 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780010931 |
| Archival Resource Key | ark:/13960/t05x74614 |
| Language | English |
| Publisher Date | 1978-02-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Sound Propagation Aircraft Noise Reflection Commercial Aircraft Noise Measurement Reflectance Sound Pressure Acoustic Impedance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
