测绘通报 ›› 2018, Vol. 0 ›› Issue (8): 74-77,96.doi: 10.13474/j.cnki.11-2246.2018.0248

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Selection Analysis of Nautical Chart Used in Underwater Terrain Matching Location

LIU Xianpeng1,2, ZHANG Lihua1,2, JIA Shuaidong1,2, SHI Yan1,2   

  1. 1. Department of Military Oceanography and Hydrography, Dalian Naval Academy, Dalian 116018, China;
    2. Key Laboratory of Hydrographic Surveying and Mapping of PLA, Dalian Naval Academy, Dalian 116018, China
  • Received:2018-05-02 Online:2018-08-25 Published:2018-08-30

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Abstract: This paper makes a research of under-water terrain matching algorithm based on navigation DDM and presents a basic scale limitation of navigation DDM as reference map.Firstly,an improved under-water terrain matching algorithm based on navigation DDM developed from traditional TERCOM is put forward.Then,two experiment sea areas with different SD (standard deviation) are divided into 100 matching areas,a series of navigation DDM with scale differs from 1:20.000 to 1:200.000 are built.Lastly,terrain matching location experiments are done with different DDM.All the experiments show:①The improved TERCOM can use navigation DDM as reference map to locate;②Navigation DDM with scale larger than 1:20.000 shall be chosen in priority to reduce the probability of error location.

Key words: digital depth model, terrain matching, map scale, probability research

CLC Number: