Nonlinear active disturbance rejection guidance law for highly maneuvering targets

被引：1
|
作者：
Ma P.-J. [1 ]
Zhao Z.-L. [1 ]
Chen S. [1 ]
Guo Y. [2 ]
机构：
[1] College of Mathematics and Statistics, Shaanxi Normal University, Shaanxi, Xi’an
[2] School of Missile Engineering, Rocket Force University of Engineering, Shaanxi, Xi’an
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2023年 / 40卷 / 05期
基金：
中国国家自然科学基金;
关键词：
extended state observer; interception guidance; nonlinear active disturbance rejection control;
D O I：
10.7641/CTA.2021.10239
中图分类号：
学科分类号：
摘要：
To improve the precision of missiles interception, this paper proposes a weighted-homogeneous-function-based nonlinear active disturbance rejection interception guidance design method. Firstly, a weighted-homogeneous-function-based extended state observer is proposed to online estimate the line-of-sight angular rate and the total disturbances. The total disturbances are composed of internal and external uncertainties including the acceleration of the target missile. Secondly, a nonlinear active disturbance rejection three-dimensional guidance law is designed by using the estimated value from the extended state observer, where the total disturbances are compensated by their estimated values. The proposed guidance law improves the interception accuracy despite high-order nonlinearities and coupling factors of the interception system. The stability and convergence of the closed-loop system are proved by analyzing the dynamic behavior of the error system. It is shown that the proposed method possesses the merit of high-accurate interception compared to existing linear-ESO-based and fal-ESO-based active disturbance rejection guidance methods. Numerical simulations validate the effectiveness and the merits of the proposed method. © 2023 South China University of Technology. All rights reserved.
引用
收藏
页码：942 / 948
页数：6
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