Guidance and Control Design for a Class of Spin-Stabilized Fin-Controlled Projectiles

Robust gain-scheduled autopilot design for spin-stabilized projectiles with a course-correction fuze

“…The 7-DoF nonlinear mathematical model for ballistic dual-spin projectiles [8] was extended for the guided case in [24] and is recalled here. The translational and attitude airframe dynamics, expressed in a non-rolling reference frame and projected on the body coordinate system (CS) B, are:…”

“…An efficient analytical procedure for the computation of the projectile equilibrium manifold is given in [24] and is not repeated here for brevity. Figs.…”

“…The collateral damage, number of rounds used to intercept a given target and unit cost are also important facts for designers. To this end, several control mechanisms were recently proposed for the steering of these systems ranging from aerodynamic surfaces [9,16,19,24] to jet thrusters [3,7,11] or even inertial loads [18].…”

Hardware-in-the-loop experimental setup development for a guided projectile in a wind tunnel

“…Current guided projectile concepts can be classified in different groups depending on the control mechanisms in use [1]: aerodynamic surfaces such as actuated canards or fins [2], jet thrusters or inertial loads. Aerodynamic control devices remain the most widespread, due to their resemblance to guided missile concepts and better controllability.…”

“…Regardless of the chosen missile or projectile concept, the implemented control loop illustrated in Fig. 1 is usually designed using model-based control techniques, typically based on modern multivariable robust control theory [1]. These control techniques can guarantee stability and performance with respect to modeling uncertainties and measurement noise [3].…”