The invention provides a transverse lateral guidance law design method, and belongs to the technical field of the full-automatic
airplane landing control law design. The guidance law design method is targeted for the full-automatic
airplane landing process, and belongs to the specific step of the full-automatic
airplane landing; a control instruction is calculated according to a motion platform and airplane movement and posture states, thereby providing a command
signal for a flight
control system; and the guidance law design is a key step for realizing
closed loop. According to the guidance law design method,
lateral deviation information of an airplane is utilized; and calculation is carried out through a designated
algorithm, thereby providing a roll angle command
signal for the airplane, and realizing lateral control in the full-automatic airplane landing process. Compared with the conventional PID control, in order to improve the maneuverability of a
system, the guidance law design method introduces double differential signals to form a PIDDD controller. The main advantages of the guidance law design method are that the measurement information can be rapidly and effectively converted into the command
signal needed in the airplane flight
control system; the guidance of the precise airplane landing is achieved; and the closed-loop cooperation control is realized.