Spatial coherence of multipath underwater acoustic transmission: An experiment at two frequencies concurrently

1984 ◽  
Vol 75 (2) ◽  
pp. 395-405
Author(s):  
H. W. Broek ◽  
C. Tom
Keyword(s):  
Spatial Coherence ◽  
Acoustic Transmission ◽  
Underwater Acoustic

Direct Mapping Based FBMC-LDPC Advanced Underwater Acoustic Transmission Scheme for Data Signals

2020 ◽  
pp. 597-603
Author(s):  
Chin-Feng Lin ◽  
Tsung-Jen Su ◽  
Shun-Hsyung Chang ◽  
Ivan A. Parinov ◽  
Sergey N. Shevtsov
Keyword(s):  
Acoustic Transmission ◽  
Transmission Scheme ◽  
Underwater Acoustic ◽  
Direct Mapping

The Application of RAKE Receiving Technology in the Underwater SS Communication

2014 ◽  
Vol 513-517 ◽  
pp. 4248-4252 ◽  
Author(s):  
Yun Hang Zhu ◽  
Zhi Hui Deng
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
High Reliability ◽  
Underwater Acoustic Communication ◽  
Technical Solution ◽  
Acoustic Transmission ◽  
Long Distance ◽  
Underwater Acoustic ◽  
Underwater Wireless Communication ◽  
Spreading Spectrum

In recent years, the strategic significance of the oceans is growing as well as its research and development needs. The underwater wireless communication is becoming more and more important. The underwater acoustic communication is one of the few mediums which can conduct the underwater transmission over a long distance, and the multipath effect is the major obstacle of affecting the systems high speed and high reliability. The characteristics of underwater acoustic fading and coherent multi-path channel are studied, and the model of underwater acoustic spreading spectrum (SS) communication system is established. The affect of coding technique on the systems performance are analyzed in detail. The improved RAKE receiving technical solution is put forward, whose simulation analysis and data in different combining ways are given. It is proved that the scheme can better solve the problem of multipath interference in underwater acoustic transmission.

Adaptive OFDM underwater acoustic transmission: An adversarial bandit approach

2020 ◽  
Vol 385 ◽  
pp. 148-159
Author(s):  
Haihong Zhao ◽  
Xinbin Li ◽  
Song Han ◽  
Lei Yan ◽  
Xinping Guan
Keyword(s):  
Acoustic Transmission ◽  
Underwater Acoustic ◽  
Adaptive Ofdm

Surface wettability induced variation of underwater acoustic transmission coefficient of the membrane resonators

2020 ◽  
Vol 258 ◽  
pp. 114572
Author(s):  
Guang Feng ◽  
Yao Xue ◽  
Qiaofei Pan ◽  
Yirui Ke ◽  
Fengping Li ◽  
...  
Keyword(s):  
Transmission Coefficient ◽  
Surface Wettability ◽  
Acoustic Transmission ◽  
Underwater Acoustic ◽  
Induced Variation
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