Practical Dual-Control Guidance Using Adaptive Intermittent Maneuver Strategy

A new adaptive intermittent maneuver strategy is proposed, which has switching threshold levels dependent on the estimated time-to-go for dual-control guidance of passive homing missiles. Guidance performance in terms of control effort and target observability fortheadaptiveintermittentmaneuver strategy arealso analyzed, as well as proportional navigation guidance. With intermittentmaneuvers the guidance command is occasionally disabled to intentionally increase guidance errors. When provided with suitable switching threshold levels, this intermittent maneuver strategy improvestarget observability and, consequently, intercept performance. Statistical simulations for an atmospheric engagement demonstrate the effectiveness of the proposed intermittent maneuver strategy.