Method for controlling a rotating shaft by breakdown of measurements of said shaft into stationary and disturbance components

A method for controlling a rotating shaft by an actuator comprising the following steps:

• acquisition of a signal to be filtered determined from measurements representative of the movement of the rotating shaft, the measurements being non-collinear with one another;
• filtering and breakdown of the signal to be filtered into a stationary component and a disturbance component for each time-frequency pairing of the signal to be filtered;
• comparison of the stationary component with respect to a setpoint for each time-frequency pairing;
• comparison of the disturbance component with respect to said setpoint for each time-frequency pairing;
• and
• generation of a command of an actuator associated with said shaft based on the two comparisons of the stationary and disturbance components, such that the actuator modifies a rotation and/or positioning parameter of the rotating shaft.