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

Authors

DOI:

https://doi.org/10.14429/dsj.71.15798

Keywords:

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

Abstract

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.

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Published

2021-07-01

How to Cite

Ferdjali, A., Lechekhab, T. E., Manojlović, S., Stanković, M., Madonski, R., & Bujakovic, D. (2021). Nonlinear Extended State Observer based Active Disturbance Rejection Control of a Laser Seeker System. Defence Science Journal, 71(4), 535–544. https://doi.org/10.14429/dsj.71.15798

Issue

Section

Electronics & Communication Systems