Nonlinear Extended State Observer based Active Disturbance Rejection Control of a Laser Seeker System
| Autor: | Taki Eddine Lechekhab, Abdellah Ferdjali, Dimitrije Bujakovic, Rafal Madonski, Stojadin M. Manojlović, Momir Stankovic |
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| Rok vydání: | 2021 |
| Předmět: |
Computer science
Mechanical Engineering General Chemical Engineering Biomedical Engineering General Physics and Astronomy Active disturbance rejection control Laser Stability (probability) Computer Science Applications law.invention Nonlinear system Control theory law State observer Transient (oscillation) Electrical and Electronic Engineering Function method |
| Zdroj: | Defence Science Journal. 71:535-544 |
| ISSN: | 0976-464X 0011-748X |
| DOI: | 10.14429/dsj.71.15798 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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