Unmanned Aerial Vehicle Simulation In Flight Envelope Based On Matlab/Simulink

With the increasing demand of unmanned aerial vehicle (UAV) in military application, it is more and more important to develop flight control system techniques of UAV. Simulations are widely applied on present researches of flight control systems. UAV flight control law and digital Simulation research for flight envelope with Matlab tools is the center of this thesis.At first, overall design for all-course-fliht simulation is introduced. Matlab power capability now is competent for UAV envelope flight simuliation. Matlab/stateflow has a power function of logical management. Flight manage system can be edited by stateflow with complex logical management.through the system UAV can fly independently or fly by remote control. A power window to display the number and flight course is edited by Matlab/GUI, through the window flight control parameters and flight state can be adjusted.In follow, nonlinear six-degrees-freedom UAV dynamic model is built, that is base of flight simulation. Arithmetic in Matlab simulation is analyzed. UAV flight control law and navigation mode are given. Some flight course switch rules are researched. UAV's launch stability and flight course precision are influenced by wind. Through the research of flight control, some way are found to lower the wind influence. A wind calculation is also provided when the UAV flights along the straight course.At last, Simulation in Flight envelope with Matlab/Simulink is is offered with data and graph to prove the simulation design is successful.