Practical dual-control guidance using adaptive intermittent maneuver strategy

A new adaptive intermittent maneuver strategy is proposed, which has switch ing threshold levels dependent on the estimated time-to-go for dual-control guidance of passive homing missiles. Guidance performance in terms of cont rol effort and target observability for the adaptive intermittent maneuver strategy are also analyzed, as well as proportional navigation guidance. Wi th intermittent maneuvers the guidance command is occasionally disabled to intentionally increase guidance errors. When provided with suitable switchi ng threshold levels, this intermittent maneuver strategy improves target ob servability and, consequently, intercept performance. Statistical simulatio ns for an atmospheric engagement demonstrate the effectiveness of the propo sed intermittent maneuver strategy.