节点文献
基于正交频分复用的深海水声通信技术研究
Research on underwater acoustic communication in deep sea based on orthogonal frequency division multiplexing
【Author】 Wang Minghua Sang Enfang (College of Underwater Acoustics Engineering,Harbin Engineering University,Harbin 150001)
【机构】 哈尔滨工程大学水声工程学院;
【摘要】 信号的多途传输引起的码间干扰是影响高速水声通信的主要障碍之一,特别是深海信道。为了克服码间干扰,结合深海信道的多途特点设计了一种 OFDM 符号结构。仿真结果表明,采用这种 OFDM 符号结构可以很好的降低码间干扰的影响,达到较高的传输速率和较低的误码率。
【Abstract】 ISI(Intersymbol Interference)caused by multipath is one of the main difficulties in high speed underwater acoustic communication,especially in deep sea channel.In order to overcome ISI,in this paper,considered the characteristic of the deep sea channel,a structure of the OFDM(Orthogonal Frequency Division Multiplexing)symbol is proposed The simulation results have shown that the effect of ISI can be reduced and the system can reach high data rates with low BER by using the structure.
【Key words】 OFDM; cyclic prefix; Intersymbol Interference; underwater acoustic communication;
- 【会议录名称】 2005年全国水声学学术会议论文集
- 【会议名称】2005年全国水声学学术会议
- 【会议时间】2005-12
- 【会议地点】中国福建武夷山
- 【分类号】TN929.3
- 【主办单位】中国声学学会水声学分会