| Autor: |
Machell, Fred W., Penrod, Clark S. |
| Zdroj: |
Journal of the Acoustical Society of America; 1983, Vol. 74 Issue S1, pS76-S77, 2p |
| Abstrakt: |
A common assumption in the processing of broadband acoustic signals is that the underlying processes are Gaussian. Although Gaussian processes arise naturally in the ocean acoustic environment, another motivation for the Gaussian assumption is the desire for analytically tractable results and simple algorithms. In this paper, a broadband propagation model is used to analyze the statistical properties of random signals propagated in a deep ocean environment. In particular, measurements of the first-order probability density functions associated with the source and received signals will be presented for several source-receiver configurations. These measurements provide insight into the appropriateness of a Gaussian assumption in broadband processing. They also illustrate the effects of acoustic propagation mechanisms on the statistical structure of a signal. Measurements of correlation functions are presented to show the effects of multipath propagation. [Work supported by the Office of Naval Research.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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