Research And Implementation Of The Carrier Aircraft Real-time Visual Simulation Of The Target Flight

The Data fusion of airborne multisensor technique is one of the key techniques in the study of aircraftboard radar. The item of the target and aircraft circumstance simulation in the research in advice project of data fusion of airborne multisensor is used as the study platform, the real time 3D visualized simulation software is developed using C++Builder6.0 and OpenGL and the target aircraft simulation data are provided to the airborne multisensor data fusion simulation system by the real time simulation of the movement characters of the target aircraft and carrier aircraft.The software simulation platform is based on the foundation of the aircraft motion equations and the design of the control laws. Firstly, the nonlinear equations of longitudinal motion , latitudinal motion and comprehensive motion of one kind of aircraft are founded. The method of nonlinear feedback linearization is applied to design and simulate the control laws for the aclinic flying—climbing—leveling flight state of an aircraft.Secondly, various kinds of data of the aircraft are managed and pretreated. The surface fitting and interpolation methods of data pretreatment are introduced. The object oriented relational database are created using the target aircraft and carrier aircraft as objects in Parodox7.0, so the management and access of various types of aircrafts data is simplified.Thirdly, the real time 3D visualized simulation software is developed. The double-buffering method and optimization theory is applied to ensure the real time character of the software. The database is easy to expansion for the use of frame structure and module design. The satisfied 3-D animated effect is realized on a relatively low cost. Due to the C++ class and rapid development technology, the efficiency and agility in the control laws design is enhanced and the ability aboutsecondary development is better.The task described above has been programmed and debugged on a popular PC. It can display the carrier and target airplane dynamic simulation on the same scene simultaneously and provide the simulation circumstance for the study of aircraftboard radar.