| 基于DSK6455的OFDM水声通信算法设计与实现 |
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| 引用本文： | 刘凇佐,孙宗鑫,周锋,李慧,乔钢.基于DSK6455的OFDM水声通信算法设计与实现[J].声学技术,2012(6):606-610. |
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| 作者姓名： | 刘凇佐 孙宗鑫 周锋 李慧 乔钢 |
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| 作者单位： | 哈尔滨工程大学水声技术重点实验室,哈尔滨150001;哈尔滨工程大学水声技术重点实验室,哈尔滨150001;哈尔滨工程大学水声技术重点实验室,哈尔滨150001;哈尔滨工程大学水声技术重点实验室,哈尔滨150001;哈尔滨工程大学水声技术重点实验室,哈尔滨150001 |
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| 基金项目： | 国家863重点资助项目(2009AA093601-2) |
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| 摘 要： | 正交频分复用(Orthogonal Frequency Division Multiplexing, OFDM)技术由于其具有频谱利用率高、抗多径和抗脉冲噪声能力强、在高效带宽利用率情况下的高速传输能力以及实现方法简单的特点,成为了近年来水声通信中的研究重点和热点之一.基于OFDM技术,在SDI公司的TMS320C6455DSK(DSP Starter Kit)板卡上实现了实时水声通信,试验结果表明,在4.3km的水平通信距离上,采用QPSK调制,1/2卷积码编码,通信带宽为4kHz,通信速率达到了1873 bps,误码率小于10-4.为实现OFDM技术的水声组网通信,水声语音、图像传输奠定了基础.
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| 关 键 词： | 正交频分复用 水声通信 实时通信 |
| 收稿时间： | 2011/12/2 0:00:00 |
| 修稿时间： | 2012/2/26 0:00:00 |
Algorithm design and implementation of OFDM underwater acoustic communication based on DSK6455 |
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| LIU Song-zuo,SUN Zong-xin,ZHOU Feng,LI Hui and QIAO Gang.Algorithm design and implementation of OFDM underwater acoustic communication based on DSK6455[J].Technical Acoustics,2012(6):606-610. |
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| Authors: | LIU Song-zuo SUN Zong-xin ZHOU Feng LI Hui and QIAO Gang |
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| Affiliation: | Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | Because of the good performances such as high spectrum efficiency, strong abilities of anti-multipath and anti-impulse noise, high-speed transmission capacity under efficient bandwidth utilization and simple implementation, OFDM becomes one of the research priorities and hotspots in underwater acoustic communication. Underwater acoustic real-time communication is realized on the TMS320C6455DSK(DSP Starter Kit) based on the study of OFDM. The Songhua river trial got the following results: the data rate is 1873bps and the bit error rate less than 10-4 for the underwater acoustic communication with QPSK modulation, rate-1/2 channel coding, and signal frequency between 4kHz and 8kHz at the distance of 4.3km. |
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| Keywords: | Orthogonal Frequency Division Multiplexing underwater acoustic communication real-time communication |
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