Research On Guidance And Control For Multi-source Information

In future war, targets generally have high-speed and high mobility entering our air defense identification zone which would cause great difficulty for detection and interception. The use of multi sources information can enhance the reliability of the system and improve the detection capability of the aircraft. This work is aiming to consider different multi source information used in particular guidance and control problem.The study of multi-source information fusion and filtering, the aim is to improve the estimation accuracy of target state information, and eventually to improve guidance accuracy. The main work including:First of all, according to the characteristics of multi-source information described in guidance and control issues, and the establishment of a vehicle motion model. Analysis of the target characteristics established target maneuvering model. By analysis of the characteristics of interception set up missile target relative motion model, to lay the foundation for the study of guidance and control issues based on multi-source information.Next, consider multiple sources of information based on guidance and control issues warning network, since the guidance stage seeker does not boot, target sports information delivered by satellite to space-based interceptors. According to the geometric relationship between the satellite and the interceptor and the target and the relative motion equations, filtering model to determine the system state equation and observation equation, simulations show that the issue of multi-source information interceptors by early warning satellite-based early warning network measurement information, filtering between the estimated target of LOS rate guidance information.Then, consider the multi-source information terminal guidance control based on the multi-mode seeker, according to the infrared \ laser active radar seeker complex features filter model was established at the end of the multimode seeker guidance given state equation and measurement equation, and its linear and discrete. Simulation results show that the multi-mode seeker with respect to single-mode seeker can get a better estimate of the filtering effect.Finally, consider the problem of coordination interception homing information from multiple sources based on multiple aircraft, according to the characteristics of multi-aircraft interception, the establishment of a multi-aircraft cooperative blocking model, gives the state equation and measurement equation of the system. In the only angle measurement information condition aircraft, estimated by collaborative filtering has been the target acceleration and other information.