Abstract In this paper, we proposed a cooperative guidance strategy to consider many on many engagements for maritime area air defence. The main idea is that a cooperative missile guidance law can defend the area as long as it guarantees that the keep out zone is always within the defended area defined by Earliest Intercept Geometry (EIG) or a No Escape Zone (NEZ). Since one of the most important issues for the cooperative guidance is to allocate attacking missiles to defending missiles, we focused on developing an allocation plan. The cooperative guidance algorithm proposed in this paper consists of two main parts: a pre allocation algorithm designed by using the EIG guidance law and Differential Geometry Guidance Law (DGGL); in flight target allocation proposed based on the differential game theory. Whilst the pre allocation plan is activated during the mid course and deactivated after the mid course, the in flight target allocation is activated during all in flight phases to refine the initial allocation. Mathematical analysis for the allocation algorithms is carried out to check their characteristics and the performance of the proposed strategy is verified by some numerical examples.
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