Underwater Acoustic Data Communications for Autonomous Platform Command, Control and Communications

2001 ◽  
Author(s):  
Michael Shinego ◽  
Geoff Edelson ◽  
Francine Menas ◽  
Michael Richman ◽  
Robert Nation
Keyword(s):  
Data Communications ◽  
Underwater Acoustic ◽  
Acoustic Data

Analysis and interpretation of underwater acoustic data originated from the vicinity of the last known location of the Argentinian submarine ARA San Juan

2018 ◽  
Vol 144 (3) ◽  
pp. 1808-1808
Author(s):  
Peter L. Nielsen ◽  
Mario Zampolli ◽  
Ronan Le Bras ◽  
Pierrick Mialle ◽  
Paulina Bittner ◽  
...  
Keyword(s):  
San Juan ◽  
Underwater Acoustic ◽  
Acoustic Data

scholarly journals High-rate wireless data communications: An underwater acoustic communications framework at the physical layer

1996 ◽  
Vol 2 (6) ◽  
pp. 449-485 ◽  
Author(s):  
Anthony G. Bessios ◽  
Frank M. Caimi
Keyword(s):  
Real Time ◽  
High Speed ◽  
High Rate ◽  
Statistical Decision Theory ◽  
Data Communications ◽  
Acoustic Communications ◽  
Statistical Decision ◽  
Theoretical Formulation ◽  
Underwater Acoustic ◽  
Detection Techniques

A variety of signal processing functions are performed by Underwater Acoustic Systems. These include: 1) detection to determine presence or absence of information signals in the presence of noise, or an attempt to describe which of a predetermined finite set of possible messages{mi,i,...,M}the signal represents; 2) estimation of some parameterθˆassociated with the received signal (i.e. range, depth, bearing angle, etc.); 3) classification and source identification; 4) dynamics tracking; 5) navigation (collision avoidance and terminal guidance); 6) countermeasures; and 7) communications. The focus of this paper is acoustic communications.There is a global current need to develop reliable wireless digital communications for the underwater environment, with sufficient performance and efficiency to substitute for costly wired systems. One possible goal is a wireless system implementation that insures underwater terminal mobility. There is also a vital need to improve the performance of the existing systems in terms of data-rate, noise immunity, operational range, and power consumption, since, in practice, portable high-speed, long range, compact, low-power systems are desired.We concede the difficulties associated with acoustic systems and concentrate on the development of robust data transmission methods anticipating the eventual need for real time or near real time video transmission. An overview of the various detection techniques and the general statistical digital communication problem is given based on a statistical decision theory framework. The theoretical formulation of the underwater acoustic data communications problem includes modeling of the stochastic channel to incorporate a variety of impairments and environmental uncertainties, and proposal of new compensation strategies for an efficient and robust receiver design.

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