Affiliation of Author(s):自动化学院

Journal:Dianji yu Kongzhi Xuebao

Abstract:In order to solve the problem that tracking accuracy of radar servo system is affected by the disturbance quantity of airborne platform and the acceleration of object, the improved auto-disturbance-rejection control (I-ADRC) method, with high tracking precision, is proposed. Considering more disturbance factors of airborne radar platform, such as the mechanical vibration, airflow, environment temperature, and attitude change of airborne, the model compensation method was introduced in the I-ADRC to reduce the load for extended state observer (ESO), which overcomes the observation accuracy decrease for the ESO caused by the large disturbance in traditional ADRC. Moreover, in the I-ADRC, the feed-forward compensation of acceleration was also adopted to eliminate the model error of servo system resulted from the acceleration of maneuvering target. Compared with traditional PI control, the airborne radar servo system with the proposed I-ADRC show its more high accuracy and more strong anti-interference, and the system can quickly track the target in the state of acceleration. © 2019, Harbin University of Science and Technology Publication. All right reserved.

ISSN No.:1007-449X

Translation or Not:no

Date of Publication:2019-05-01

Co-author:Jiang, Ren-Hua,Ning, Yin-Hang,Xie, Yang

Correspondence Author:lc