地形辅助导航的匹配算法

An Approach of Terrain—Matching for Terrain—Aided Navigation

针对巡航导弹组合导航系统的要求,通过研究地形匹配辅助导航常用的各种算法,反复试验,设计出一种基于地形熵差和绝对差度量的地形高程匹配算法来实现地形匹配定位功能,在应用于巡航导弹巡航段低空飞行的地形跟随/地形回避中得到了理想的结果,达到较高的定位精度,是一种具有实用价值的匹配算法。

In order to match the requirement of a national defense pre-researching project,the approaches used in TAN were studied and a new approach in this dissertation was designed which based on measurement of terrain- entropy and absolute difference to carry out terrain-matching locating function.Experiments testify that the approach can be quite accurate and shows ideal effect when applied in TF/TA.