Receding horizon guidance laws with the current target information

Novel receding horizon guidance laws (RHG) are proposed for missiles, which are appropriate when the time-to-go is inaccurate but the current target information is known (K.B. Kim et al., 2000). In the presence of arbitrary large target maneuvers and initial relative vertical separation rates between the target and missile, the proposed RHG is shown to intercept the target by keeping the relative vertical separation less than the given value, within which the warhead of the missile is detonated from the appropriately selected time. Through simulation examples, the effectiveness of the proposed RHGs is illustrated in terms of the relative vertical separation, the missile acceleration, and the terminal miss distance.