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Filtering for Switched T-S Fuzzy Systems With Persistent Dwell Time.
IEEE Transactions on Cybernetics
|July 12, 2018
Summary
This study introduces a new H-infinity filter design for switched fuzzy systems using persistent dwell time (PDT) switching. The method ensures stability and noise attenuation for complex systems.
Area of Science:
- Control Systems Engineering
- Fuzzy Logic Systems
- Nonlinear Control Theory
Background:
- Switched systems are common in control applications.
- Takagi-Sugeno (T-S) fuzzy models represent nonlinear systems effectively.
- Persistent dwell time (PDT) switching offers a more general framework than traditional dwell time (DT) methods.
Purpose of the Study:
- To design a full-order H-infinity filter for switched T-S fuzzy systems.
- To guarantee global uniform asymptotic stability for the filtering error system.
- To achieve a prescribed H-infinity noise attenuation performance.
Main Methods:
- Investigated H-infinity filter design for switched T-S fuzzy systems with PDT.
- Derived stability and L2-gain analysis for systems under PDT switching.
- Developed a filter design ensuring stability and H-infinity performance.
Main Results:
- A novel H-infinity filter design for switched T-S fuzzy systems with PDT switching is presented.
- The filter guarantees global uniform asymptotic stability.
- Prescribed H-infinity noise attenuation performance is achieved for the filtering error system.
Conclusions:
- The proposed H-infinity filter design method is effective for switched T-S fuzzy systems with PDT.
- The PDT switching approach provides a more general framework for stability analysis and filter design.
- The study demonstrates the practical applicability through an illustrative example.
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