【摘要】 介绍了地形辅助惯性导航系统，并对其进行了仿真研究。为了仿真研究的方便，根据地形的统计模型，利用计算机生成了模拟的数字地图。仿真实验验证了用数字地图来辅助惯性导航可以有效地提高导航精度，地形的粗糙度对导航精度有影响。更多还原

【Abstract】 Higher demands have been required for the navigation accuracy of various strategic and tactical weapons.In addition to the high accuracy,the navigation systems should have other features such as all weather,independence,high activeness,high electronic antagonism environment and conceal in the modern wars.Only the integrated navigation systems, in which the inertial navigation system and other navigation devices are optimumly, can satisfy these demands. The terrain aided navigation system is of bright prospects.The paper discribes one of the Terrain Aided Navigation——SITAN and produces the simulated digital maps by computer on the basis of the statistical model of the terrain.The simulation results prove that the navigation accuracy can be improved by using the digital maps to aid the inertial navigation,and influenced by the roughness of the terrain.更多还原