针对飞行方式灵活、高度表测量误差大、惯导初始积累误差大等机载应用环境的特点,文中提出了一种适合于机载应用的地形匹配系统结构,并详细分析了该系统结构下的工作流程、匹配算法、匹配区选取原则等地形匹配系统实现过程中的关键技术,实验结果证明了研究方案的合理性和可行性。

In view of airborne application characteristics such as flexible flight, large error of altimeter, large initial error of inertial navigation system, etc, a new terrain matching system architecture suiting for airborne application was presented in the paper. Then the key techniques in terrain matching system realization process including system workflow, terrain matching algorithm and selection criterion of matching area were expatiated. The experimental results prove the rationality and feasibility of the proposed solution.