Intercept Dynamics And Control

Intercept technology is a research hot in the military guidance field. It is also the key technology of precision intercept guided weapons. To intercept and against all kinds of vehicles, it must first correctly determine the flight rules of guided weapons, correctly estimate the next movement path, and correctly identify it. Then there must be rapid and accurate optimum guidance laws of the target attacked, so as to successful interception target.Firstly, for intercept target identification, the paper bases on the synthesis position forecast algorithm theory, changes the target identification problem to search optimized parameters of forecast model, and gives the target identification method. It gives the forecast strategy description that the forecast divides into two kinds, the far distance target forecast and near distance target forecast based on the MAS and BP neural network and space moving target identification theory. The method dividing the target state by freedom degrees and forecasting by MAS and neural network subnet is proposed. Correctness and evaluated antigen are tested by the simulation of example.Secondly, the interception dynamics model establishment and design of guidance law is a main content in this paper. The paper introduces the intercept dynamics and several guidance laws. Discusses the Pontryagin minimum principle of the optimal control method, and analyzes their advantages and disadvantages and applicability firstly bases on the intercept dynamics. A new algorithm based on the Pontryagin minimum principle proposed: with the relative motion equation between target and interceptor as model, in the shortest time, minimum fuel consumption and minimum miss-distance for comprehensive performance index, intercepting dynamics guidance law is designed using the Pontryagin minimum principle. Finally, it gives three typical example, the simulation results verify the correctness and effectiveness of this method.