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Computer Engineering ›› 2012, Vol. 38 ›› Issue (15): 244-246,250. doi: 10.3969/j.issn.1000-3428.2012.15.069

• Networks and Communications • Previous Articles     Next Articles

Underwater Ranging Method Based on PCA in Confined Closed Environment

XU Yao-song 1,2, LI Yi-bo 1, FU Tong-lingB 1, JIN Shi-jiu 1   

  1. (1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; 2. Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China)
  • Received:2011-09-30 Online:2012-08-05 Published:2012-08-05

有限封闭环境中基于PCA的水声测距方法

徐耀松1,2,李一博1,付铜玲1,靳世久1   

  1. (1. 天津大学精密测试技术及仪器国家重点实验室,天津 300072;2. 辽宁工程技术大学电气与控制工程学院,辽宁 葫芦岛 125105)
  • 作者简介:徐耀松(1979-),男,讲师、博士研究生,主研方向:水声定位,水声信号处理;李一博,副教授、博士后;付铜玲,硕士研究生;靳世久,教授
  • 基金资助:
    国家自然科学基金资助面上项目(2011B1-0089);天津市应用基础及前沿技术研究计划基金资助项目(09JCYBJC02200)

Abstract: A Principal Component Analysis(PCA) based acoustic ranging method is proposed for conducting feature extraction and dimension reduction. The method is used to suppress multipath effect interference and preserve enough information about the covariance matrix of the received signal. Experimental results show that the method can improve the accuracy and robustness of underwater ranging in confined closed environment.

Key words: confined closed environment, underwater ranging, Time of Flight(TOF), multipath effect, Principal Component Analysis(PCA), covariance matrix

摘要: 有限空间中多途效应严重影响测距的准确性,针对该问题,提出一种基于主成分分析的水声信号测距方法,对信号协方差矩阵进行降维和特征抽取,在保留协方差矩阵信息量的同时抑制多途干扰信号的影响。实验结果表明,该方法能够提高有限封闭液态场环境中水声测距的准确性和稳健性。

关键词: 有限封闭环境, 水声测距, 渡越时间, 多途效应, 主成分分析, 协方差矩阵

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