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TF/TA飞行航迹控制器设计
Design of Flight Trajectory Controller for Terrain Following/Terrain Avoidance
【摘要】 提高现代武装飞机的生存能力,基于TF/TA的超低空突防能力是飞行控制系统首先要求具备的功能。本文研究了在已知理想航迹的基础上飞机航迹跟踪控制器的设计方法,给出了控制器结构和算法。首先根据理想飞行航迹和实际飞行航迹之间的误差,计算航迹控制指令;然后,为了改善飞机的动态性能,使飞机能跟踪航迹控制指令而完成TF/TA飞行,用非线性解耦控制理论设计了飞行控制系统。仿真结果表明,该方法具有较好的航迹跟踪性能。
【Abstract】 In order to improve survivability of modern military aircraft, the low-altitude penetration capability based on terrain following/terrain avoidance (TF/TA) is the first function that the flight control system rnust possess. This paper researches the design method of a flight trajectory following controller, provided the desirable trajectory is known. The controller structure and its algorithm are obtained. First, the flight path control commands are computed using errors between the desire flight path and the actual flight path, then, the flight control system is designed by the nonlinear decoupling control theory so as to improve the aircraft dynamic performance for precise tracking of path control commands and bringing to success the TF/TA flight. Simulation results show that the designed controller can control aircraft to follow closely the desirable trajectory.
【Key words】 flight control; terrain following; terrain avoidance; trajectory following; nonlinear decoupling controller;
- 【文献出处】 南京航空航天大学学报 ,JOURNAL OF NANJING UNIVERSITY OF AERONAUTICS & ASTRONAUTICS , 编辑部邮箱 ,1997年01期
- 【分类号】V249.12
- 【被引频次】13
- 【下载频次】207