Experimental evaluation of PID and ESO controller for instrument landing system

This paper presents methodologies for design and experimental evaluation of both Proportional Integral and Derivative (PID) and Extended State Observer (ESO) controller for auto landing system. The process of auto landing can be experimentally described as second-order model for ESO controller. A PID controller and ESO controller is proposed to achieve the desired response for the autoland system. Computer simulations are performed to illustrate the performance of PID and ESO controller in comparison to each other. The applicability and usefulness of the proposed control scheme are well exemplified by conducting experiments on an aircraft model. Both simulations and experimental results reveal that the proposed PID and ESO scheme performs equally.