Symmetry-Based Observers for ODE Systems

• 成果类型: Article
• 署名作者: Battilotti, Stefano
• 署名单位: Sapienza University Rome
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2025.3582172
• 发表日期: 2025
• 关键词: HIGH-GAIN OBSERVERS; feedback; DESIGN

摘要

An observer design framework is introduced for ordinary differential equation systems based on various types of existing or even novel one-parameter symmetries (exact, asymptotic, and variational) ending up with different types of semiglobal and global observers, by considering bounded or unbounded system solutions and requiring asymptotic-time or prescribed-time error convergence. We compare some of these symmetry-based observers with existing observers, recovering for instance the same performances as high-gain semiglobal observers and the finite-time convergence capabilities of sliding mode observers.