Multi-modal Fire Calculation Research

When fire control systems are calculated, the traditional anti-aircraft artillery target was assumed that the motion is linear. The irregular hovering, high acceleration of random vibrating, man-made operation also lead to a greater error when the fire control systems are calculated. And it can not be used even finally.Hit problems on fire control system in the interacting multiple models is proposed in this thesis. It concerns several crucial contents as follows:1) It is investigated about the function of firing table,the equation of trajectory and so on. Besides, calculating the shooting set of data is indispensable. In order to acquire objective function, the hit function of the classical interacting multiple models is created.2) The main arithmetic of hit function is explored and compared. Accordingly, the essential thought and method of the Search Method and BFGS is primary studied. And then, the Search Method and BFGS is used to solve the interacting multiple models Hit problems.3) Arithmetic of hit problem and simulation software is designed. The simulated experiment is carried on for different mission including Constant Speed motion,uniformly accelerated motion,spirality motion and hovering motion.. Velocity of convergence and inaccuracy of iteration is compared among different arithmetic in the interacting multiple models. At the same time, Matlab is used to do the simulations on the track curves and ballistic curve.4) Future Airspace Window is adopted that expands the calculation of point to plane. With the FAW, hit probability of fire control system is raised and a practical creation method of FAW is quantificationally given. While, this technology is applied to the fire control system. The simulation results show bet ter shooting results on this firing system.