CLC number: TN92
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2018-08-08
Cited: 0
Clicked: 6298
Lan-jun Liu, Jian-fen Li, Lin Zhou, Peng Zhai, Hao Zhao, Jiu-cai Jin, Zhi-chao Lv. An underwater acoustic direct sequence spread spectrum communication system using dual spread spectrum code[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(8): 972-983.
@article{title="An underwater acoustic direct sequence spread spectrum communication system using dual spread spectrum code",
author="Lan-jun Liu, Jian-fen Li, Lin Zhou, Peng Zhai, Hao Zhao, Jiu-cai Jin, Zhi-chao Lv",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="19",
number="8",
pages="972-983",
year="2018",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1700746"
}
%0 Journal Article
%T An underwater acoustic direct sequence spread spectrum communication system using dual spread spectrum code
%A Lan-jun Liu
%A Jian-fen Li
%A Lin Zhou
%A Peng Zhai
%A Hao Zhao
%A Jiu-cai Jin
%A Zhi-chao Lv
%J Frontiers of Information Technology & Electronic Engineering
%V 19
%N 8
%P 972-983
%@ 2095-9184
%D 2018
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1700746
TY - JOUR
T1 - An underwater acoustic direct sequence spread spectrum communication system using dual spread spectrum code
A1 - Lan-jun Liu
A1 - Jian-fen Li
A1 - Lin Zhou
A1 - Peng Zhai
A1 - Hao Zhao
A1 - Jiu-cai Jin
A1 - Zhi-chao Lv
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 19
IS - 8
SP - 972
EP - 983
%@ 2095-9184
Y1 - 2018
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1700746
Abstract: With the goal of achieving high stability and reliability to support underwater point-to-point communications and code division multiple access (CDMA) based underwater networks, a direct sequence spread spectrum based underwater acoustic communication system using dual spread spectrum code is proposed. To solve the contradictions between the information data rate and the accuracy of Doppler estimation, channel estimation, and frame synchronization, a data frame structure based on dual spread spectrum code is designed. A long spread spectrum code is used as the training sequence, which can be used for data frame detection and synchronization, Doppler estimation, and channel estimation. A short spread spectrum code is used to modulate the effective information data. A delay cross-correlation algorithm is used for Doppler estimation, and a correlation algorithm is used for channel estimation. For underwater networking, each user is assigned a different pair of spread spectrum codes. Simulation results show that the system has a good anti-multipath, anti-interference, and anti-Doppler performance, the bit error rate can be smaller than 10−6 when the signal-to-noise ratio is larger than −10 dB, the data rate can be as high as 355 bits/s, and the system can be used in the downlink of CDMA based networks.
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