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Bounded differential games guidance law for dual-controlled missiles

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2 Author(s)
Shima, T. ; Rafael Ltd., Haifa, Israel ; Golan, O.M.

A new guidance law tailored for an interceptor missile having forward and aft controls is proposed. The guidance law is derived using a differential games formulation with bounded controls. For the derivation, the interceptor closed-loop dynamics is represented by two first-order bi-proper transfer functions. Possible game-space structures are investigated, including a new one with two closed singular regions. The effect of the direct lift associated with the canard and tail controls is investigated, and it is proved that zero miss distance can always be guaranteed for some initial conditions. It is also shown that for the tail control a switching surface at some constant time before interception exists in the game-space, resulting from its nonminimum-phase nature.

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Control Systems Technology, IEEE Transactions on  (Volume:14 ,  Issue: 4 )