文章摘要
许肖梅.水声通信与水声网络的发展与应用[J].声学技术,2009,(6):811~816
水声通信与水声网络的发展与应用
Development and applications of underwater acoustic communication and networks
投稿时间:2008-03-17  修订日期:2008-07-16
DOI:
中文关键词: 水声Modem  水声网络  水声信道  Seaweb
英文关键词: underwater acoustic Modem  underwater acoustic network  underwater acoustic channel  Seaweb
基金项目:国家自然科学基(40776022);福建省科技重点项目(2009N0050)
作者单位E-mail
许肖梅 厦门大学水声通信与海洋信息技术教育部重点实验室, 厦门, 361005 xmxu@xmu.edu.cn 
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中文摘要:
      水声信道是迄今为止最为复杂的无线通信信道之一,其固有的时-空-频变以及窄带、高噪、强多途、长时延传输等特征,使水声通信和水声网络在性能上还难以满足人们在实际应用中的迫切需求,面临极大的技术挑战。介绍了水声通信与水声网络的特点和发展现状,分析了复杂多变的水声信道特点及水声通信所要解决的关键技术,包括调制、解调技术和信号检测技术;介绍了水声网络中的拓扑结构、多路访问、MAC协议和路由选择等方法。最后简要介绍美国Teledyne Benthos公司的水声Modem和美国海军的海网Seaweb网络及国内在此方面所取得的一些进展及应用前景。
英文摘要:
      Underwater acoustic channel is one of the most complex wireless communication channels.The inherent characteristics,such as space-time-frequency varying,narrow-band,high-noise,strong multipath interference,long transmission delay,and large fluctuation,make the effectiveness and reliability of underwater acoustic communication face enormous challenges.In this paper,the features and development of underwater acoustic communications and networks are introduced,the key techniques in UAC and UACN,including modulation,demodulation and signal de-tection analyzed,and the protocol layer in UACN provided.Finally the 4th generation modem made by Benthos and the US Navy‘s Seaweb Program and the perspective on development and application of UAC and UACN in China is illu-minated.
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