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嫦娥三号的软着陆轨道设计与控制策略,是根据嫦娥三号软着陆过程六个阶段的运动状态及其月面的数字高程图,建立动力学模型,依据能量守恒原理与各阶段状态要求,通过控制推力方向缩短发动机工作时间来节省燃料,利用Matlab软件,最终得出嫦娥三号的软着陆最优控制策略以及各阶段轨迹方程.
The design and control strategy of Chang’e-3’s soft landing trajectory is based on the dynamic state of the six stages of the Chang’e-3 soft landing process and its digital elevation map of lunar surface. Based on the energy conservation principle and the state requirements of each stage, By controlling the direction of thrust to shorten the engine working time to save fuel, using Matlab software, finally come to Chang’e III soft landing optimal control strategy and the trajectory equation of each stage.