Integrated guidance and control of moving-mass actuated kinetic warheads

Modeling, simulation, and integrated guidance control of a kinetic warhead utilizing moving-mass actuators are discussed. Moving masses can be used in any speed range both in the atmosphere as well as outside it, as long as there is a force, either aerodynamic or propulsive, acting on the vehicle. The moving-mass actuation technique offers significant advantages over conventional aerodynamic control surfaces and reaction-control systems because the actuators are contained entirely within the airframe geometric envelope and produce no plumes. The present research develops a nine-degree-of-freedom simulation model of a kinetic warhead with three moving-mass actuators. This simulation model is used for actuator sizing and in the development of flight-control systems. A software package for performing numerical feedback linearization is employed for the design of nonlinear flight control systems. Interception of nonmaneuvering and weaving targets in both endoatmospheric and exoatmospheric conditions is demonstrated.