海洋测绘2018，Vol.38Issue(2)：66-70,5.DOI:10.3969/j.issn.1671-3044.2018.02.016
基于TIN模型的水下地形匹配定位算法
Underwater Terrain Matching Algorithm Based on Triangulated Irregular Network
摘要
Abstract
Considering the condition that the current sea chart has not been used directly in current terrain aided navigation (TAN) algorithm,a new terrain matching algorithm based on triangulated irregular network (TIN) is proposed.Firstly,strategy to select the matching region based on the TIN model is designed.Furthermore,method used to calculate the depth of the tracks ready to be matched is proposed.Lastly,combined correlation algorithm used to locate the object is built.All the experiments show:①Comparing to the traditional TERCOM algorithm based on RGM,the new method can acquire more precious location in areas with obvious features.②It can lower the probability of mismatching.③The new method can overcome the influence of system noise to location precision in a certain extent.关键词
匹配定位算法/组合匹配/水下地形/不规则三角网/数字水深模型Key words
underwater terrain matching algorithm/integrated matching/underwater terrain/triangular irregular network/digital model分类
天文与地球科学引用本文复制引用
刘现鹏,张立华,贾帅东,曹鸿博..基于TIN模型的水下地形匹配定位算法[J].海洋测绘,2018,38(2):66-70,5.基金项目
国家自然科学基金(41471380,41601498,41774014). （41471380,41601498,41774014）
