燃油最省的四维导引算法

A FUEL-OPTIMAL 4D GUIDANCE ALGORITHM

本文提出了一种燃油最省的四维导引算法,可用于在线性计算同时满足燃油最省及到达时间两个条件的最优飞行轨迹。数字仿真结果表明,该算法速度快、精度高,具有工程实用价值。本文所做的工作是为机载四维飞行管理系统实现的必要准备。

A fuel-optimal four dimensional (4D) guidance algorithm is presented in this paper. With the aid of the proposed algorithm, an optimal flight trajectory can be calculated on line. Such an optimal flight path can meet both the fuel savings and arri val time requirements. In the paper, simulation results also show that the algorithm mentioned above is really satisfactory from the engineering point of view. Since not only the computation time is reduced in comparison with other algorithms, but the precision is also high. The work done in this paper is a necessary step for the implementation of on-board 4D Flight Management System (FMS).