Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (10): 1415-1423.doi: 10.11947/j.AGCS.2018.20170232

Previous Articles     Next Articles

An Adaptive Simplification Method of SVP Based on Area Difference

ZHENG Gen1,2, ZHANG Hongmei3, FENG Lei4, ZHAO Jianhu1,2   

  1. 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Marine Research Institute, Wuhan University, Wuhan 430078, China;
    3. School of Power and Mechanical Engineering, Wuhan Universality, Wuhan 430072, China;
    4. The Sea and Islands Use Dynamic Monitoring Center, Shenyang 110000, China
  • Received:2017-05-04 Revised:2017-11-03 Online:2018-10-20 Published:2018-10-24
  • Supported by:
    The National Key Research and Development Program of China (Nos. 2016YFB0501703;2016YFB0501700)

Abstract: An adaptive method based on area difference is proposed. Firstly, the relationship between area difference and sound ray tracking bias is studied and the model is built. Then the simplification method and procedure of SVP are provided, which are based on the constraint of sound ray tracking accuracy. Finally, a deep water experiment is conducted to verify the proposed method and the simplification process is easily achieved without manual intervention. It improves the efficiency of bathymetric data processing remarkably to carry out ray-tracing with simplified sound velocity profile.

Key words: sound velocity profile simplification, area difference, equivalent sound velocity profile, sound ray-tracing bias

CLC Number: