摘要
介绍了地形轮廓匹配(TERCOM)地形高程辅助导航系统的工作原理、系统组成和技术应用,分析了地形轮廓匹配算法的性能指标;着重介绍了地形轮廓匹配辅助导航系统中数字地图、地形相关适配性、匹配搜索算法、实测高程数据采集、组合导航、数字相关器等几项关键技术,有针对性地提出了基于地形信息熵的匹配区域选择、序贯相似度检测搜索(SSDA)、等间距高程数据采集、多组合导航等比较适用的解决方案和应用实例,并通过数据统计和分析进行了论证。
The paper introduces the basic principle, composing and technologic application of terrain contour matching（TERCOM） elevation-aided navigation system. The TERCOM algorithms and performance targets are provided and analyzed. In brief, this paper discusses several pivotal techniques of TERCOM system, which include digital maps, terrain correlation suitability, algorithms in matching and searching, real elevation data acquisition, integrated navigation and digital correlation equipment; then describes and analyzes some appropriate resolving scheme and examples, for instance, an approach to select the area for matching based on terrain entropy, the sequential similarity detection algorithm（SSDA） for searching, the equidistant elevation data collection, multi-integrated navigation, etc.
出处
《中国惯性技术学报》
EI
CSCD
2006年第1期34-40,共7页
Journal of Chinese Inertial Technology
关键词
地形辅助导航
TERCOM
相关适配性
熵
组合导航
terrain aided navigation
terrain contour matching
correlation suitability
entropy
integrated navigation
