Research On Exoatmosphere Multiple Kill Vehicle Target Assignment And Cooperative Guidance Law

The development of multiple independently reentry vehicles and the emergence of various new types of jamming devices have put forward higher requirements for the mid-course interception of ballistic missiles.Aiming at multiple targets,launching multiple interceptors at the same time to intercept them is the most effective means of combat.Considering the interception of multiple targets outside the atmosphere,first,the weapon-target allocation algorithm needs to be simple and convenient,and the convergence speed is fast;secondly,because the interception speed is fast,high-precision guidance algorithms are required;finally,for high-threat targets,more Two interceptors coordinately intercept the target to improve the interception effect.Aiming at the above problems,this paper studies the target allocation and coordinated guidance of multi-target interception outside the atmosphere.First of all,considering that the interception problem is the movement in the three-dimensional plane,since the interception is in the terminal guidance stage,the line of sight and the like satisfy the assumption of a small angle,the relative movement in space can be decomposed into the movem ent of two planes.Relative motion is modeled.Secondly,the problem of the allocation of multiple interception targets is studied.After the task allocation model is established,the target threat degree can be calculated through the target threat degree quantitative model and the weight distribution of the dispersion maximization principle,and the missed target can be normalized as the corresponding interception probability.After the genetic algorithm is used to solve the allocation problem,in view of the existing problem of slow solution speed and post chattering,an adaptive method is selected to improve it,which improves the convergence speed of the allocation algorithm and the allocation effect.Finally,the problem of multi-interceptor angle coordinated guidance is studied.Firstly,the corresponding motion model is established;then,based on the theory of differential gameplay,using the miss amount and interception angle of the intercepting parties as the cost function,the system state equation established is reduced,and the accompanying variables are solved to give the interceptor and the target.The instruction is overloaded;after that,a simplified derivation and conjugate point analysis are carried out for the case of two blocks and one,a nd the sufficient conditions for the absence of conjugate points are given;finally,in the case of two blocks and one case,the guidance of the derived angle is coordinated The algorithm is simulated and analyzed to verify the superiority of the coordinat ed guidance algorithm with angle constraints.