Design of Flight Path Angle Rate Control Based on Active Disturbance Rejection Control for Manual Landing System

This paper proposes a direct lift manual landing system based on active disturbance rejection control (ADRC-DLC). The system employs ADRC as the control strategy and is divided into three channels: the stabilator channel, the flap channel, and the throttle channel. These channels are responsible for flight path angle rate adjustment, angle of attack maintenance, and speed stabilization, respectively, allowing the pilot to directly control the flight path angle rate and guide the carrier aircraft onto the proper glide path for landing. Additionally, a direct lift decoupling module based on balanced pitch rate is designed to dynamically allocate the deflection of the flaps and stabilators, achieving decoupling of the flight path and attitude angles and enhancing landing precision. The effectiveness of the proposed control system is evaluated through simulations, demonstrating its strong control performance.