Sensitivity of the Reverberation Spectrum to System and Environmental Parameters.
Abstract
The assumption of a Gaussian-shaped spectrum for received reverberation may no longer yield realistic results as ocean acoustic measurement systems increase in complexity. In this paper, we determine the sensitivity of the reverberation spectrum to both system and environmental parameters. Volume, surface, and bottom reverberations received by multibeam sensors on nonstationary platforms are generated using a theoretical approach that is now implemented in the Generic Sonar Model. To demonstrate this method, was compute the expected spectrum of the surface component for a variety of parameters, including source speed, wind speed, bearing, and arrival angle. Results indicate that spectral characteristics are highly sensitive to these parameters, particularly for the sideward-looking beams. It is anticipated that this model will have significant implications in underwater acoustic performance predictions. Originator-supplied keywords: Arrival angle, Beam angle, Bearing, Platform motion, Pulse shape, Reverberation spectrum.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1985
- Accession Number
- ADA153196
Entities
People
- A. H. Quazi
- E. R. Robinson
- J. B. Chester
Organizations
- Naval Underwater Systems Center