Underwater acoustic tracking in shallow water for naval training ranges

1996 ◽  
Vol 100 (4) ◽  
pp. 2703-2703
Author(s):  
Peter J. Stein ◽  
Steven E. Euerle ◽  
Richard K. Menoche ◽  
Robert E. Janiesch
Keyword(s):  
Shallow Water ◽  
Acoustic Tracking ◽  
Underwater Acoustic

Experimental Multipath Delay Profile of Underwater Acoustic Communication Channel in Shallow Water

2016 ◽  
Vol 2 (2) ◽  
pp. 351 ◽  
Author(s):  
Yasin Yousif Al_Aboosi ◽  
Ahmad Zuri Sha'ameri
Keyword(s):  
Shallow Water ◽  
Acoustic Communication ◽  
Multipath Propagation ◽  
Water Channel ◽  
Underwater Acoustic Communication ◽  
Communication Performance ◽  
Underwater Acoustic ◽  
Research Fields ◽  
Different Depths ◽  
Major Factors

<p>The shallow water channel is an environment that is of particular interest to many research fields. An underwater acoustic channel is characterized as a multipath channel. Time-varying multipath propagation is one of the major factors that limit the acoustic communication performance in shallow water. This study conducts two underwater acoustic experiments in Tanjung Balau, Johor, Malaysia. A transducer and a hydrophone are submerged at different depths and separated by different distances. Linear frequency modulated (LFM) pulses are chosen as the main transmit signal for the experiments. The cross-correlation between the transmitted and received signals represents the impulse response of the channel (multipath profile). The results show that the amplitude of the successive paths will not rapidly decline, and vice versa, when the distance between the sender and the receiver increases. Moreover, the time difference between the different paths will be small in the case of distance increase. In other words, the successive paths will converge in time.</p>

Underwater Acoustic Noise Model for Shallow Water Communications

2012 ◽  
Author(s):  
José Panaro ◽  
Fábio Lopes ◽  
Leonardo Barreira ◽  
Fidel Souza
Keyword(s):  
Shallow Water ◽  
Acoustic Noise ◽  
Noise Model ◽  
Underwater Acoustic
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