Abstract: Aircraft automatic flight along waypoints can greatly reduce the pilot workload. In this paper, the realization of navigation and control system for automatic flight along waypoints is researched. The aerodynamic model, six degreeoffreedom dynamics and kinematics models are designed, and a realtime calculation of the models is achieved in its applications by SIMULINK. With the navigation system, an innerouter loop control scheme is proposed, the outer loop focuses on waypoint navigation, and the inner loop is used for aircraft attitude control. Besides, a trajectory error controller is developed. According to its scheme, the implementation of navigation system is realized. Simulations are carried out and the results show automatic flight along waypoints is conducted with stable, accurate following the flight procedure instructions.

Key words: air transportation, performancebased navigation, auto flight, dynamics model

摘要： 民航飞机按照飞行程序自动飞行，能够极大地减轻飞行员工作负荷。本文对航路点自动飞行的实现方案进行了研究，对飞机气动模型、六自由度动力学与运动学模型进行了设计，并利用SIMULINK实现了模型解算的实时性.对导航系统进行设计，实现了内－外环的导航和控制方案，即外环实现航路点导航，内环实现飞机姿态控制，并对航迹偏差控制器进行了设计与实现.在此基础上，实现了航路点自动飞行，能够稳定、准确地跟踪飞行程序，实现了对飞行程序的仿真验证.

关键词: 航空运输, 基于性能的导航, 自动飞行, 动力学模型