Disturbance Rejection Control Approach for Rotating Antenna

In this work, we propose designing a system that has approximately the same idea as the radar’s operation concept. The representative process control challenges are tackled using a new control technique called Active Disturbance Rejection Control (ADRC) to solve tracking control problems. An additional state variable, that is calculated and adjusted in real time, is the disturbance and the unmeasured dynamics related to the antenna. This disturbance and the unmeasured dynamics are handled in the ADRC framework. This controller is applied to drive and rotate the antenna to the appropriate locations in 2D in real-time using two DC motors that operate independently. The ADRC estimates the internal and external disturbances using an extended state observer (ESO). A simulation study is performed on two ADRC controllers and DC motors which give excellent results and drive the antenna successfully to the desired position in two cases: without and with external disturbances.