| Autor: |
Wilson, Gary R., Frazer, Marshall E. |
| Zdroj: |
Journal of the Acoustical Society of America; 1983, Vol. 73 Issue 3, p749-760, 12p |
| Abstrakt: |
A theoretical model of reverberation developed by D. Middleton was implemented to predict the spatial-temporal covariance of surface reverberation. The implementation assumed narrow-band transmissions and point scatterers treated as perfect point reflectors distributed uniformly over the plane of the mean surface level. The implementation of the model under these assumptions is presented, and the results are compared to experimental measurements of the covariance of surface reverberation measured by a horizontal array of receivers. The dependence of the covariance on spatial separation of the receivers, time, and time difference was modeled. The modeled results were found to agree well with the experimental measurements. The effects of off-axis scattering due to the azimuthal directivity of the projector and the bandwidth of the projector and receivers were shown to be significant and were also shown to be properly taken into account by the model. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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