Research on single carrier underwater acoustic communication based on multiband transmission

被引：0
|
作者：
Han X. [1 ,2 ]
Guo L.-X. [1 ,2 ]
Yin J.-W. [1 ,2 ]
Sheng X.-L. [1 ,2 ]
机构：
[1] Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin, 150001, Heilongjiang
[2] College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, 150001, Heilongjiang
来源：
| 1677年 / China Ordnance Industry Corporation卷 / 37期
关键词：
Communication technology; Decision feedback equalizer; High-rate UWA communication; Multiband transmissions; Passive time reversal mirror; Single carrier;
D O I：
10.3969/j.issn.1000-1093.2016.09.018
中图分类号：
学科分类号：
摘要：
For the high peak-to-average power ratio and the sensitivity of orthogonal frequency division multiplexing system to Doppler shift, a single carrier underwater acoustic (UWA) communication method based on multiband transmission is proposed, providing a feasible approach for high-rate UWA communication. The communication band is divided into some sub-bands with several kilohertz in bandwidth, and a guard band is inserted between sub-bands to eliminate inter-carrier interference at the receiver. A UWA communication experiment was conducted at sea. The available band is divided into two sub-bands, of which has 2.25 kHz in bandwidth and a 0.75 kHz guard band, and the carrier frequencies are 3 kHz and 6 kHz, respectively. Passive time reversal mirror combined with decision feedback equalizer is used to suppress inter-symbol interference. Transmissions of test data at communication distances of 3 km, 5 km, and 7 km are implemented at low bit error rate with communication rate of 9 kbit/s when modulated by 8-PSK, proving the effectiveness and robustness of the proposed method. © 2016, Editorial Board of Acta Armamentarii. All right reserved.
引用
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页码：1677 / 1683
页数：6
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