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Cooperative Evasion and Pursuit for Aircraft Protection

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Final rept. 15 Mar 2009-14 Mar 2012

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This report summarizes the work performed over a three year research effort in which was analyzed an interception engagement in which a defending missile is read from an aircraft to intercept an incoming homing missile. Three different cooperation schemes were presented and mathematically formulated. For each case optimal cooperative guidance laws were derived, according to the constraints induced by cooperation limitations. The first case implied two-way cooperation allowing full synergy between the target and the defender. In this case no constraints were applied on their behavior which allowed us 36 of 38 to derive cooperative pursuit strategies for the target and the defender. In the second case we assumed that only one-way cooperation is available from the side of the target. As a realization of such a scenario we considered an independently homing defender and a target trying to lure in the missile. For this case the optimal one-way cooperative support strategy was derived for the target to aid the defender intercept the missile. Third approach assumed information sharing from the target to the defender, i.e. independently evading target, while the objective of the defender was to exploit this information to intercept the missile. All three guidance schemes were derived assuming arbitrary order linear dynamics of the adversaries, perfect information under the constraints of respective information sharing schemes, and a missile employing a known linear guidance strategy. Performance of the proposed guidance laws was analyzed via simulation, using the notion of Pareto fronts. As expected, it was shown that fully cooperative actions yield best performance compared to one-way cooperation schemes and one-on-one strategies. Once two-way communication cannot be established and full cooperation is not possible one player of the target-defender team must act independently.

Subject Categories:

  • Military Aircraft Operations
  • Antimissile Defense Systems
  • Air Navigation and Guidance

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