针对目前无人机采用的某些着陆导引方式存在的覆盖面积小、易受干扰等缺点,设计了基于光学导引系统的无人机自动着陆控制系统。建立了某型无人机的纵向和横侧向的线性方程,结合光学导引系统的性能指标提出了光学导引自动着陆系统的总体结构,设计了理想下滑轨迹和自动着陆控制律方案,将光学导引系统和自动着陆控制系统结合在一起,运用经典PID控制方法分别设计了纵向和横侧向的控制律,并进行了仿真验证。仿真结果表明,光学导引自动着陆控制系统的控制精度高,能满足无人机自动着陆的性能要求。 In view of the short coverage area and the easy interference of some landing guidance methods used by UAV, the automatic landing control system of UAV based on optical guidance system is designed. Based on the performance of optical guidance system, the general structure of optical guidance automatic landing system is established. The ideal landing trajectory and automatic landing control law scheme are designed. The optical guidance system and the automatic landing control system are combined together. The vertical and lateral control laws are respectively designed by the classical PID control method, and the simulation is verified. The simulation results show that the optical guidance automatic landing control system has high control accuracy and can meet the performance requirements of UAV automatic landing.