Cooperative Salvo with Bounded Lateral Acceleration Against Stationary Targets

In this paper, we propose a cooperative salvo guidance scheme that accounts for the bounds on the available lateral acceleration of an interceptor while guaranteeing simultaneous target interception. To address the constrained input during guidance design itself, we augment the kinematic equations for relative motion between target and interceptors with an additional input saturation model that helps maintain the input within permissible bounds while ensuring system stability. This eliminates the difficulties in ensuring system stability that are encountered by the usual approach of handling input saturation using ad-hoc restrictions during implementation. Guidance command is derived using second-order consensus among time-to-go variables of different interceptors. The performance of the proposed guidance scheme is validated using numerical simulations and found to be satisfactory for various initial engagement scenarios.