Formation And Realization Of Airborne Missile Typical Motion Track

In order to satisfy the development of aeronautics,astronautics and navigation,the precision of inertial navigation and guidance system is advanced rapidly.Researchers discover the other factors which influence the precision of inertial navigation and guidance system,and improve inertia component,inertial navigation and guidance system spatially.However,these work all need the test equipment of high precision and high performance.In addition,inertial navigation and guidance system are all expensive,they need dynamic characteristics simulation of flight attitude and flight dynamic characteristics on the ground before flight test.Detection of flight attitude and flight dynamic characteristics also need high performance test equipment.Flight simulator is the test equipment which detects and estimates the capability of inertial navigation and airborne photoelectric guidance system.It is the key equipment of aircraft(such as airplane, missile and airship and so on ) in ground flight simulation.And it can recur the aircraft mass centre motion angle,angular velocity and angular acceleration and so on.Under the environment of scientific,data of spatial track are given to three-axis turntable.Recurring the flight attitude and flight dynamic characteristics of airplane and missile to test the capability of inertial navigation and guidance system.Providing necessary and scientific reference data for flight test and improve system capability.According to the motion characteristic of plane and missile,mathematical model under every motion mode are established.Control law of airplane and missile are set.It is one important part of this paper.The selection accuracy of control parameters would decide the accuracy of the track.So the key of this design is debugging of control parameters.The control law completes the control of pitch,yaw,height,sway amplitude,sway frequency,hover cycle of plane,pitch, yaw,height,acceleration of missile in different time segment.Under VC++ environment,compiling work is completed.Typical motion track curve of plane and missile are simulated using MATLAB.It is another important part of this paper.At the same time of getting simulation curves,various inertial navigation information data including position,velocity,pose,acceleration,angular rate,jerk and angular acceleration are obtained.Then provide inertial navigation information to simulation table,in order to test inertial instrument and simulate flight.The result of simulation reaches the design requirement.The curves simulate track of airborne missile perfectly,although there are fluctuation at the time of time segment transformation,it can resume rapidly,and the result would not be influenced.