基于地形熵的地形匹配算法研究  

Study on Approach of Terrain-Matching Based on Terrain-Entropy

作　　者：苑娜 吴俊伟[1] 刘金峰[1] 张雨楠[1] 

机构地区：[1]哈尔滨工程大学自动化学院,150001

出　　处：《导航》2006年第4期21-27,共7页

摘　　要：利用地形熵算法进行粗配。精配，从而实现地形匹配定位．对于在地形起伏剧烈的区域该算法的优势更为明显．对另一种结合了地形熵算法的优点和MAD算法精度高的特点方法进行匹配仿真试验，分析了匹配的原理，模拟出了仿真用地形数据，对仿真结果进行讨论．结果表明，两种算法均达到了较好的匹配性能指标．The terrain-entropy method is used to carry out terrain.matching locating function by the rough matching and exact matching. Terrain-entropy method has its own individual advantages, especially for the complicated zone topography. MAD method also has characteristics of high-precision. A new approach combining advantages of terrain-entropy and MAD is used to simulate test. Analyses of the matching principle and method of building terrain dates for simulation are given. The simulation results showed that two method were achieved better matching performance indicators.

关 键 词：地形熵 地形匹配 平均绝对差 仿真 

分 类 号：P227.9[天文地球—大地测量学与测量工程]