Collaborative Guidance Method Of The Multi-Missiles Flying In Formation

With the development of information technology, the war has become rivalrybetween systems, information warfare and electronic warfare will run through theentire process of war. Given this situation, a single missile has been difficult to meetthe needs of today’s battlefield, especially advanced anti-missile missile systemcause single missile cannot breakthrough defense, the warfare of multi-missilecoordinated emerged. Formation of multi-missiles can used effectively coordinatedstrategy to hit the target in space and time, and significantly improve operationaleffectiveness. In this context, this paper studies formation control method ofmulti-missile and time collaborative guidance law of multi-missile.Firstly, this paper gives the definition of several common coordinate systemand conversion between various coordinate systems, establishs the missile and thetarget kinematics model and dynamic model, builds relative motion model betweenleader missile and follower missile, establishs relative motion model between themissile and the target.Secondly, this paper uses small perturbation method to linear relative motionmodel between leader missile and follower missile, for question of slowdisturbances in the linear model designs PI controller, for question that desired pointof formation flight control is not zero designs controller which given point is notzero, and designs optimal formation control method of formation flying andoptimizes this method, simulates the process of formation flight to verifyeffectiveness of this formation control method.Finally, this paper introduces nonlinear dynamic inversion control theory,establishs cooperative guidance model for fixed targets, and designs collaborationguidance law for fixed target; establishs cooperative guidance model formaneuvering targets, and designs collaboration guidance law for maneuvering target,simulates and verifies guided effect, analyzes transfer conditions from formationflying to cooperative guidance, gives the calculation method of the predictedintercept point, determines formation. Through the simulation of the whole processwhich include formation flying and coordinated attack in the three-dimensionalspace, indicates formation control method and collaborative guidance law designedcan hit the maneuvering target in the same time.