منابع مشابه
Acoustics in Uncertain Ocean Environments
3) to predict and understand the characteristics of active and passive time reversal methods in shallow ocean waters. Compared to the first two, the third goal is a secondary priority that stems from the legacy of more than a decade of prior work on acoustic time reversal. It is mentioned here because the author of this report does respond to the continuing technical inquiries and collaboration...
متن کاملRay Dynamics in Ocean Acoustics
Recent results relating to ray dynamics in ocean acoustics are reviewed. Attention is focussed on long-range propagation in deep ocean environments. For this class of problems, the ray equations may be simplified by making use of a one-way formulation in which the range variable appears as the independent (time-like) variable. Topics discussed include integrable and nonintegrable ray systems, a...
متن کاملAnnual Report for Ocean Acoustics
One of the long-term goals of this project is to analyze and propose energy-efficient communication techniques for underwater acoustic sensor networks. These techniques aim at consuming as less energy as possible as well as guaranteeing a minimum quality of service. In order to do so, we assume and validate some statistics of the underwater acoustic channels and derive stochastic optimal transm...
متن کاملSequential Bayesian Filtering in Ocean Acoustics
Sequential filtering provides an optimal framework for estimating and updating the unknown parameters of a system as data become available. Despite significant progress in the general theory and implementation, sequential Bayesian filters have been sparsely applied to ocean acoustics. The foundations of sequential Bayesian filtering with emphasis on practical issues are first presented covering...
متن کاملONR Graduate Traineeship Award in Ocean Acoustics
Many environmental factors may contribute to acoustic clutter and adversely affect the performance of tactical sonar by introducing false alarms in the system. During the Main Acoustic Experiment (MAE) 2003 of the Acoustic Clutter program, densely populated fish shoals were identified to be the dominant cause of shallow water acoustic clutter in the New Jersey Continental Shelf. The mixing of c...
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ژورنال
عنوان ژورنال: Computers in Physics
سال: 1995
ISSN: 0894-1866
DOI: 10.1063/1.4823373