VxWorks下飞行模拟系统研究与设计

Research and Design for a Flight Simulation System Based on VxWorks

介绍了基于嵌入式实时操作系统VxWorks的无人机仿真系统。建立了无人机动力学及运动学数学模型,给出了气动系数的拉格朗日插值计算方法,采用一种全新的方法实现飞行模拟,即利用RTW接口下载飞机数学模型到VxWorks操作系统。最后给出了半物理仿真和全数字仿真的对比曲线,验证了仿真系统的正确性。该系统的研制成功,对于验证无人机飞控/导航控制律及加快无人机研制进度有重要意义。

Introducing a simulation system of unmanned aerial vehicle （ UAV）, which is based on embedded real time operation system-VxWorks. The mathematical models of dynamics and kinematics are established, and a real time Lagrange interpolation method of the aerodynamic coefficients is presented ; And then adopting a new method that using the RTW interface the model of UAV is downloaded to VxWorks ; At the end, the curves of semi -physical simulation and digital simulation are given which show that the simulation system is correct; The successful research would be significant for navigation and flight control laws of UAV.