Modern guidance laws via receding horizon control without the time-to-go

A receding horizon guidance law (RHG) is proposed which is useful when the time-to-go is inaccurate or is unavailable, or the accurate time-to-go is difficult to estimate in a sampling time. In the presence of arbitrary target maneuvers and an initial lateral miss distance rate between the target and missile, it is shown that the proposed RHG can make lateral miss distance (MD) below the predescribed value in the prespecified time without the time-to-go. Through simulation, guidance performance of RHG is illustrated and RHG is compared with the optimal guidance law in terms of miss distance and missile acceleration.