中文摘要：

火星无人机是未来深空探测的发展方向之一.该文针对火星探测无人机建模与切换控制进行研究,概述火星探测无人机的运行过程,建立火星探测无人机的数学模型,分析带伞飞行和无伞飞行的稳态性能,设计姿态和高度控制系统,实现火星探测无人机的切换控制.仿真研究表明所建模型稳定可行,所提切换控制方法能保证切换过程的安全性和稳定性.

英文摘要：

Unmanned aerial vehicle for Mars exploration is a development direction in the future deep space exploration.In this paper,modeling and switching of Mars vehicles are studied.The flight process of the vehicle is briefly described,and a mathematical model established.The steady state performance is analyzed under conditions with and without a parachute.Systems for controlling position and altitude are designed, and switching control is realized.Simulation shows that the model is stable and feasible,and the proposed switching control methods can guarantee security and stability of the switching process.