Control system design of active disturbance rejection control inverse estimation algorithm for airborne radar stabilized platform based on forecast revision

In order to improve the anti-interference capability of airborne radar stabilized platform, this paper proposes a disturbance rejection control strategy for an airborne radar stabilized platform based on the forecast revision active disturbance rejection control (ADRC) inverse estimation algorithm. Exploiting the extended state observer (ESO) and tracking differentiator (TD) characteristics, a forecast revision inversely ESO is constructed by changing the input signal of the classical ESO, and sending the total disturbance output by the inversely ESO to the forecast revision TD for phase lead compensation to further improve the observation accuracy of the disturbance. Simulation experiments are adopted to compare the performance of the forecast revision ADRC inverse estimation algorithm with that of the PID controller, which is one of the mostly applied control schemes in platform systems. In addition, classical ADRC is compared as well. The results are shown that the forecast revision ADRC inverse estimation algorithm has a better disturbance rejection performance when disturbance acts in airborne radar stabilization platform, and compared with traditional ADRC, it has higher disturbance observation accuracy and robustness.