计算机科学 ›› 2013, Vol. 40 ›› Issue (Z6): 217-219.

• 模式识别 • 上一篇    下一篇

盲源分离技术在AIS中的应用

赵文红,王巍   

  1. 中国电子科技集团公司第三十六研究所 嘉兴314033;中国电子科技集团公司第三十六研究所 嘉兴314033
  • 出版日期:2018-11-16 发布日期:2018-11-16
  • 基金资助:
    本文受国家自然科学基金(60872041,6)资助

Application of Blind Source Separation to AIS

ZHAO Wen-hong and WANG Wei   

  • Online:2018-11-16 Published:2018-11-16

摘要: AIS自动识别系统是国际船舶组织统一使用的一种海上船舶运输系统。船上的AIS设备定时地报告该船的位置、航向以及其他相关的安全信息等,其他船只和岸上的基站同时可以收到这些汇报信息。它通过船舶之间以及船舶和岸台之间交换航行信息,进一步加强航行安全。AIS采用SOTDMA技术来调配发送信息的时隙,但是信息冲突是不可避免的。引入盲源分离技术,一旦信息发生冲突,可以将信息分离出来,防止了信息的丢失,从而提高了信号的监测概率。

关键词: AIS,监测概率,盲源分离

Abstract: The Automatic Identification System(AIS),which is imposed by the International Maritime Organization(IMO),is a maritime safety and vessel traffic system.For security,the AIS-equipped ships broadcast position reports and short messages with information about the ship and the voyage that could be received by other ships and shore-based stations.AIS uses self-organizing TDMA(SOTDMA)for scheduled repetitive transmissions from an autonomous station.But the conflicts are difficult to escape.In the paper,once the conflicts appear,the technology of blind source separation will be introduced into AIS.It could separate each message from the coinciding transmissions,avoid messages losing,and improve the detection probability.

Key words: AIS,Detection probability,Blind source separation

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