M-ary Cyclic Shift Keying Spread Spectrum Underwater Acoustic Communications Based on Virtual Time-Reversal Mirror
M-ary Cyclic Shift Keying Spread Spectrum Underwater Acoustic Communications Based on Virtual Time-Reversal Mirror
复制标题
基于虚拟时间反转镜的多进制循环移位键控扩频水声通信
DOI：
10.3390/s19163577
复制
发表时间：
2019-08
期刊：
影响因子：
3.9
通讯作者：
Ma Dongdong
中科院分区：
文献类型：
--
作者：
Zhou Feng;Liu Bing;Nie Donghu;Yang Guang;Zhang Wenbo;Ma Dongdong
水声通信信道复杂，声波在海洋中传播时会受到噪声、反射、散射等多种干扰，扩频技术因其抗干扰能力强、保密性好等优点在水声通信中得到了广泛的应用。水声信道是典型的相干多径信道，码间干扰严重影响水声通信的性能。时间反转镜像技术利用水声信道的这一物理特性，通过重构多径信号抑制码间干扰，通过空间聚焦减小信道衰落的影响。提出了一种基于虚拟时间反转镜的多进制循环键控扩频水声通信方案。与传统的扩频技术相比，该方法采用多进制循环移位键控扩频技术提高通信速率，采用虚拟时间反转镜保证低误码率，具有更强的鲁棒性。仿真和水池实验验证了该方法的有效性。
Underwater acoustic communications are challenging because channels are complex, and acoustic waves when propagating in the ocean are subjected to a variety of interferences, such as noise, reflections, scattering and so on. Spread spectrum technique thus has been widely used in underwater acoustic communications for its strong anti-interference ability and good confidentiality. Underwater acoustic channels are typical coherent multipath channels, in which the inter-symbol interference seriously affects the performance of underwater acoustic communications. Time-reversal mirror technique utilizes this physical characteristic of underwater acoustic channels to restrain the inter-symbol interference by reconstructing multipath signals and reduce the influence of channel fading by spatial focusing. This paper presents an M-ary cyclic shift keying spread spectrum underwater acoustic communication scheme based on the virtual time-reversal mirror. Compared to the traditional spread spectrum techniques, this method is more robust, for it uses the M-ary cyclic shift keying spread spectrum to improve the communication rate and uses the virtual time-reversal mirror to ensure a low bit error rate. The performance of this method is verified by simulations and pool experiments.
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影响因子：
5.4
作者：
Stephen J. Wright;R. Nowak;Mário A. T. Figueiredo
通讯作者：
Stephen J. Wright;R. Nowak;Mário A. T. Figueiredo
影响因子：
--
作者：
Yin Yan-lin
通讯作者：
Yin Yan-lin
影响因子：
5.4
作者：
Wright, Stephen J.;Nowak, Robert D.;Figueiredo, Mario A. T.
通讯作者：
Figueiredo, Mario A. T.
DOI：
10.1109/sensorcomm.2008.137
发表时间：
2008-08
期刊：
2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)
影响因子：
--
作者：
J. Rice;D. Green
通讯作者：
J. Rice;D. Green
影响因子：
2.4
作者：
Shaofan Yang;Zhongyuan Guo;Qunyan Ren;Shengming Guo
通讯作者：
Shaofan Yang;Zhongyuan Guo;Qunyan Ren;Shengming Guo