Abstract: A system for firing a projectile mounted on a carrier, the decision assistance system comprising: a first simulator for simulating a navigation system of the carrier and configured to produce a precision of a solution for navigation of the carrier; a second simulator for simulating a navigation system of the projectile and configured to be initialized with the precision of the solution for navigation of the carrier and produce a precision of a solution for navigation of the projectile; and a selector configured to select or not the projectile as projectile to be fired as a function of the precision of a solution for navigation of the projectile.

Abstract: Disclosed is a decision assistance system (8) for firing a projectile at a target (4) mounted on a mobile carrier (1), the system comprising: a first simulator (10) for applying a process repeatedly to simulated data that represent a configuration of the carrier and a trajectory of the carrier between a first (T1) and a second (T2) instant, to develop a precision of a navigation solution of the associated carrier at the second instant (T2); a second simulator (12) for: a) being initialized with said precision, b) applying a process repeatedly to simulated data that represent a trajectory of the projectile between the second and a third instant (T3), in order to develop a precision of a navigation solution of the projectile (4) associated with the third instant (T3), and a selector (14) for either selecting the projectile or not (4) in order to fire on the target, according to the precision developed in step b).