LikeSNU-서울대 중앙도서관 빅데이터 지식 플랫폼

A Variable-Bandwidth Extended State Observer for Nonlinear Systems With Measurement Noise

Author

Cui, B.; Zhao, G.; Xia, Y.; Wang, P.; Zhang, Y.

Journal Title

IEEE Transactions on Industrial Electronics

Publication Year

2025

Topics

Summary

This article proposes a novel variable-bandwidth extended state observer (VBESO) to estimate external disturbances for a class of nonlinear systems with measurement noise. The VBESO automatically adjusts its bandwidth based on the output estimation error, achieving a tradeoff between estimation accuracy and robustness to measurement noise. Furthermore, VBESO-based state-feedback control is applied to a drag-free spacecraft hardware-in-loop experiment platform, and simulation and experiment results demonstrate that the proposed VBESO improves tolerance to measurement noise and achieves a balance between transient and steady-state performance.

Journal Influence

[IEEE Transactions on Industrial Electronics]