Abstract:

An optimal guidance law based on the maximum principle is discussed in this paper. It is assumed that the kinetic characteristics of "vehicle-target"are that of a first order lag loop which can be described as follows:the performance index is the minimum control energy consumptionthe terminal states belong to a intecept curved surface with control cutoff and the terminal acceleration of the vehicle equals zero:the control force satisfies the normal constraint:Based on these assumptions, an analytical form of the closed loop optimal intercept guidance law has been deduced.