Experimental Study of Doppler Effect for Underwater Acoustic Communication Using Orthogonal Signal Division Multiplexing

2012 ◽  
Vol 51 (7S) ◽  
pp. 07GG04
Author(s):  
Tadashi Ebihara ◽  
Keiichi Mizutani
Keyword(s):  
Experimental Study ◽  
Acoustic Communication ◽  
Doppler Effect ◽  
Underwater Acoustic Communication ◽  
Orthogonal Signal ◽  
Underwater Acoustic

Experimental study of efficient multi-band underwater acoustic communication algorithm

2018 ◽  
Vol 144 (3) ◽  
pp. 1870-1870
Author(s):  
Hui Su Lee ◽  
Chang Uk Baek ◽  
Jung-Hyun Seo ◽  
Ji Won Jung ◽  
Dae Won Do
Keyword(s):  
Experimental Study ◽  
Acoustic Communication ◽  
Underwater Acoustic Communication ◽  
Underwater Acoustic ◽  
Multi Band

Experimental Study of Long-Range Shallow Water Acoustic Communication Based on OFDM-Modem

2012 ◽  
Vol 546-547 ◽  
pp. 1308-1313 ◽  
Author(s):  
Gang Qiao ◽  
Song Zuo Liu ◽  
Feng Zhou ◽  
Zong Xin Sun
Keyword(s):  
Experimental Study ◽  
Acoustic Communication ◽  
Channel Equalization ◽  
Underwater Acoustic Communication ◽  
Frequency Diversity ◽  
Shallow Sea ◽  
Underwater Acoustic ◽  
Sea Trial ◽  
Communication Distance ◽  
Compensation Channel

In this paper, we focus on the need for remote and robust underwater acoustic(UWA) communication in shallow sea. A set of OFDM underwater acoustic communication algorithm is designed including the techniques of Doppler estimation and compensation, channel equalization and frequency diversity. This algorithm is realized in the DSP and successfully applied on the OFDM-Modem platform. In Da- Lian shallow sea trial, the horizontal communication distance is 36 kilometers under the condition of QPSK modulation, 1/2 rate convolution code, bandwidth between 4 and 8kHz. The communication rate of the OFDM-Modem can reach 426bps and the ultimate BER is less than 10-3.

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