轨迹规划的一个最基本目标是规划飞机通过威胁空间并实现任务目标的飞行轨迹。

One of the basic objects of a flight path planner is to plan a route through threat space to accomplish mission objectives, at the same time the route should satisfy mission planning constraints.

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分析了沿最优轨迹飞行的物理原因和基本迎角控制规律，可为滑翔式再入飞行器的最优轨迹方案设计提供依据。

The physical causation of the optimal trajectory and the corresponding angleofattack profile are presented. It is a good reference for schematic trajectory design for gliding type reentry vehicles.

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