Volume 37 Issue 5
May  2012
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LU Xiuping, BIAN Shaofeng, HUANG Motao, ZHAI Guojun. An Improved Method for Calculating Average Sound Speed in Constant Gradient Sound Ray Tracing Technology[J]. Geomatics and Information Science of Wuhan University, 2012, 37(5): 590-593.
Citation: LU Xiuping, BIAN Shaofeng, HUANG Motao, ZHAI Guojun. An Improved Method for Calculating Average Sound Speed in Constant Gradient Sound Ray Tracing Technology[J]. Geomatics and Information Science of Wuhan University, 2012, 37(5): 590-593.
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An Improved Method for Calculating Average Sound Speed in Constant Gradient Sound Ray Tracing Technology

  • 1 College of Electrical and Information Engineering,Naval University of Engineering,717 Jiefang Road,Wuhan 430033,China;2 Navel Institute of Hydrographic Surveying and Charting,40 Youyi Road,Tianjin 300061,China

Funds: 国家863计划资助项目(2009AA121405);;国家重大专项基金资助项目(9201502);;国家自然科学基金资助项目(41074002,61071006)
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  • Received Date: March 14, 2012
  • Published Date: May 04, 2012
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    • Abstract
  • Based on the research and analysis on the current computational models of sound ray tracing,a set of more precise computational formula are derived.The basic principle of the method is that the average sound speed is calculated using the integral of the sound line arc infinitesimal,then a precise beam footprint position formula is obtained.The theoretical analysis shows that the average speed of the traditional ray tracing technology is the approximate solution of the improved sound ray tracing technology when the circular path of the sound ray is taken as chord of the arc.The experimental result shows that the improved sound ray tracing arithmetic is more precise and practical than the traditional sound ray tracing technology.
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