TF／TA飞行航迹控制器设计

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，计算航迹控制指充；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

Design of Flight Trajectory Controller for Terrain Following/Terrain Avoidance

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.