Novel decoupling-compensating control based on incremental model for bank-to-turn missiles

The characteristic and existed problems of traditional dynamic inversion control for bank-to-turn (BTT) missiles were analyzed in detail. A novel decoupling-compensating control approach was proposed for BTT missiles. In this approach, an incremental BTT model which demonstrated the transition from current dynamics to desired dynamics was established. And by doing so, the portion of model which was difficult to observe or with large uncertainties was eliminated. Then based on the incremental model and dynamic inversion, the incremental decoupling-tracking control law was designed which relied less on model than the traditional dynamic inversion. To further improve the control law’s adaptability to disturbances, a simple disturbance estimation and compensation strategy was proposed. Finally, simulation results validate the effectiveness of this approach.