一种AUV移动OFDM水声通信系统设计

李 斌; 郑思远; 曹秀岭; 童 峰

doi:10.11993/j.issn.2096-3920.2018.06.016

一种AUV移动OFDM水声通信系统设计

doi: 10.11993/j.issn.2096-3920.2018.06.016

李斌^1,2,
郑思远^1,2,
曹秀岭^1,2,
童峰^1,2

1.
厦门大学水声通信与海洋信息技术教育部重点实验室, 福建厦门, 361002
2.
厦门大学海洋与地球学院, 福建厦门, 361002

基金项目: 国家自然科学基金项目资助(11574258)

详细信息

作者简介:
李斌(1990-), 男, 在读博士, 主要研究方向为水声通信与水声信号处理.

中图分类号: U674.941; TN929.3
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- 文章访问数: 791
- HTML全文浏览量: 9
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- 被引次数: 0
出版历程
- 收稿日期: 2018-11-07
- 修回日期: 2018-12-01
- 刊出日期: 2018-12-31

Design on Mobile OFDM Underwater Acoustic Communication System for an AUV

1.
Key Laboratory of Underwater Acoustic Communication and Marine Information Technology of Minister of Education, Xiamen University, Xiamen 361002, China
2.
College of Ocean & Earth Sciences, Xiamen University, Xiamen 361002, China

摘要

摘要: 针对水声信道多径效应和多普勒频偏对移动正交频分复用(OFDM)水声通信产生的严重载波间干扰(ICI)和码间干扰(ISI), 采用时频差分编码方案, 互相关函数方法进行多普勒估计, 变采样率重采样进行多普勒补偿, 设计并实现了一种面向自主式水下航行器(AUV)的、易于工程实现的低复杂度移动OFDM水声通信系统。该系统能够有效避免残余多普勒补偿的问题, 同时对多径信道表现出一定程度的稳健性。海试结果表明, 该系统可在浅海信道复杂多径和一定多普勒影响的条件下正常工作, 实现了移动OFDM水声通信。
- 自主式水下航行器 /
- 移动通信 /
- 正交频分复用 /
- 时频差分 /
- 多普勒估计
Abstract: For the serious effects of inter-carrier interference(ICI) and inter-symbol interference(ISI) caused by the multipath and Doppler shift on mobile orthogonal frequency division multiplexing(OFDM) underwater acoustic communication in underwater acoustic channel, the time-frequency differential coding, cross-correlation function and resample with variable sampling rate are adopted to resist the Doppler effect. Subsequently, a low-complexity mobile OFDM underwater acoustic communication system, which is easily implementable in engineering, is designed for an autonomous undersea vehicle(AUV). The communication system can avoid the residual Doppler compensation effectively, and it shows a certain degree of robustness to multipath channel. Sea trial results show that the system can work normally under shallow sea channel with complex multipath and certain Doppler effect, and realize mobile OFDM underwater acoustic communication.
- autonomous undersea vehicle(AUV) /
- mobile communication /
- orthogonal frequency division multiplexing(OFDM) /
- time-frequency differential /
- Doppler estimation

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参考文献(20)

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