Redesign of the flight control law for receiver aircraft after adding air-refueling status

To reduce the airflow disturbance effect of tanker and considering the requirement of air-refueling to the receiver aircraft,the flight control law of a receiver aircraft after adding air-refueling system is redesigned based on neural network method and gain scheduling.The simulation results of Longitudinal-loop show that:with the redesigned flight control system,the stability of the receiver is improved at air-refueling status;every joystick longitudinal displacement corresponds to a pitch rate at stable state,and if current pitch is out of this area,the customer can restore the original operation.This relationship can be applied for Bank-loop too.