项目名称: 水下地形导航数据库匹配区选取规则研究
项目编号: No.61203192
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 自动化学科
项目作者: 王立辉
作者单位: 东南大学
项目金额: 23万元
中文摘要: 选择水下地形导航匹配区域是构建水下地形导航数据库的先决条件。本申请以水下地形导航匹配区域为研究对象,首先,从地形导航信息应用的角度,采用模糊相关性理论建立水下地形特征导航信息量的函数模型,其次,构造水下地形导航误差与地形特征导航信息量的相关性函数,明确地形特征参数对不同匹配算法解算误差的影响,分析地形参数与匹配算法的最优组合方式,并提出水下地形导航匹配区初选方法,最后,构建导航区初选方法验证平台,对水下地形导航匹配区初选方法及其相关的地形特征、地形匹配算法、地形导航精度进行系统性的仿真分析与评估,提出水下地形导航数据库匹配区选取规则。本申请的研究旨在优化导航匹配区选取方法,对水下地形导航数据库构建方法进行梳理和突破。具体的,可以为水下地形导航匹配区的选取提供理论指导,使水下地形测量有的放矢,提高水下地形导航数据库的构建效率,同时也可以为评价水下地形特征提供理论支撑。
中文关键词: 水下地形辅助导航;地形导航数据库;导航信息量;地形匹配算法;地形匹配区域
英文摘要: Select the underwater terrain navigation matching region is a prerequisite to build the underwater terrain navigation database. By taking matching area of underwater terrain navigation system as the research object, this project carries out research in accordance with the following steps. Firstly, with use of fuzzy correlation theory, the function model of underwater terrain feature navigation informative is obtained based on applications of terrain navigation information. Secondly, the impacts of terrain informative characteristic parameters on different matching algorithms' calculating error are proposed by constructing the correlation functions between underwater terrain navigation error and topographical features, then, optimal combination methods of terrain parameters and matching algorithm are analyzed, and primary methods of matching area selection in underwater terrain navigation database are put forward. Finally, experimental studies are made by constructing terrain matching area primary selection methods simulation platform, including primary methods of matching area selection in underwater terrain navigation database, underwater topographical features, terrain matching algorithm, and terrain aided navigation system accuracy, and then matching area selection rules in underwater terrain navigation datab
英文关键词: Underwater terrain aided navigation (TAN);Terrain navigation map database;Terrain navigation informative;Terrain matching algorithm;Terrain matching area