Simulation Study On Target State Estimator Of Fight Aircraft

With the development of science technology, modern war has become a competition of the both sides'science ability. Gaining the ability of precise attacking is important to all countries. As a base of the precise attacking, precise tracking and estimating is important. The research presented in this thesis emphasized on multi-targets tracking and forecasting of modern fighters.Some modeling of maneuvering target tracking is introduced in this thesis, and current statistical model is used as a basic target model. The arithmetic of Kalman filtering based on the model is listed. On the foundation of state vector optimal estimation error matrix theory, The arithmetic of optimal estimation is presented, and target tracking simulation is taken.To the question of multi-targets tracking, the theory of multi-target tracking and how to producing the tracking gates is introduced. The methods of data association and tracking beginning and ending to single and multiple targets tracking in the multi-echo environment is listed. At the end of the thesis, a method is introduced, which is that based on the most closed principle, without the chosen echo,the current forecasting values added yawp based upon the former state values is considered as the target state estimated value. The value is an input of observation equation , The output of the observation equation is considered a chosen echo.And the method is validated in the simulation results.