Nonlinear Extended State Observer based Active Disturbance Rejection Control of a Laser Seeker System

Defence science journal

article

Abdellah Ferdjali¹  Taki Eddine Lechekhab¹  Stojadin Manojlović¹  Momir Stanković¹  Rafal Madonski²  Dimitrije Bujakovic¹ 

[1] University of Defence;International Energy College, Jinan University

关键词: Active disturbance rejection control;    ADRC;    Nonlinear extended state observer;    NESO;    Laser seeker control;   

DOI  :  10.14429/dsj.71.15798

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

In this paper, the laser seeker control problem is solved in the framework of active disturbance rejection control (ADRC). The considered problem, which consists of laser seeker stabilisation and target tracking, is expressed here as a regulation problem. A nonlinear extended state observer (NESO) with varying gains is used to improve the performance of linear ESO (LESO), and thus enable better control performance in both transient period and steady-state, with lower control effort. Based on a detailed analysis of system disturbances, a special ADRC tuning method is proposed. The stability of the overall control structure is analysed with a description function method. Through comparative simulations LESO-based and the introduced NESO-based ADRC for the laser seeker system, the advantages of the proposed scheme are shown.

【 授权许可】

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