Defending an interceptor with lure role scenario: A finite-time cooperative guidance method

The problem of multi-aircraft cooperative intercepting maneuvering targets is focused in the study. To effectively save the required cost of interception, a cooperative guidance scheme with different roles is considered, and a cooperative guidance method is proposed based on H2 norm performance index under finite-time boundedness conditions. First, a cooperative interception model is established based on the relative motion equation and first-order dynamics characteristics. Second, by considering the system state and finite-time stability characteristics of the output, sufficient conditions for the synthesis of the H2 norm performance of the system under the finite-time bounded conditions are derived. Then, under the finite-time boundedness conditions, a cooperative guidance method with lure roles is designed based on the H2 norm performance index synthesis method. The proposed method can ensure that the defender satisfies the output finite-time convergence characteristic with a small energy consumption. Furthermore, the intermediate state does not exceed the predetermined limit value and effectively saves the overload required for interception during the guidance process. Additionally, simulation experiments are conducted to verify the effectiveness of the proposed method.