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Recent advances in navigation and data communication technologies make it feasible for individual aircraft to plan and fly their trajectories in the presence of other aircraft in the airspace. This way, individual aircraft can take advantage of the atmospheric and traffic conditions to optimally plan their paths. This capability is termed as the free flight(More)
1. Difference sets in finite groups have been studied at great length in a paper by R. H. Brück [l]. Marshall Hall, Jr.'s notion of a "multiplier" of a difference set has been extended by Brück to difference sets in groups. The latter has also extended a theorem of Hall on multipliers [3 ] to abelian groups. Hall has later obtained a generalization of his(More)
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(More)
Control design tasks often require the use of trial-and-error search methods to obtain a satisfactory solution. Depending upon the nature and the number of " tuning " parameters or functions, the search process can be very discontinuous and nonconvex. The genetic search methods are a recently developed family of techniques for optimization which offer(More)
Numerical state-dependent Riccati equation based integrated guidance-control formulation is developed for an internally actuated missile. The dynamic system under consideration is of tenth order, making it tedious to algebraically manipulate the equations of motion into the state-dependent coefficient form central to the design methodology. A numerical(More)