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针对终端能量管理阶段的轨迹控制任务,设计了适用于一种在线轨迹生成算法的俯仰、横航向和动压三通道制导律,其中俯仰通道的双回路控制器设计中使用了动态逆方法。建立了反映内回路特性的三自由度仿真模型以及针对飞行任务的控制系统分析方法,并使用上述方法分析了内回路动态特性、气动力、质量不确定性和常值风场等对轨迹控制效果的影响,三自由度仿真验证了轨迹生成和控制方法的可行性和鲁棒性。
For trajectory control tasks in terminal energy management phase, a three-channel guidance law for pitch, lateral and dynamic pressure applied to an on-line trajectory generation algorithm is designed. The dynamic inverse method is used in the design of dual-loop controller of pitch channel. A three-degree-of-freedom simulation model reflecting the characteristics of the inner loop and a control system analysis method for the flight mission are established. The dynamic characteristics of the inner loop, aerodynamic forces, quality uncertainties and constant wind fields are analyzed using the above method. The three-degree-of-freedom simulation verifies the feasibility and robustness of trajectory generation and control methods.