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Adaptative high-gain extended Kalman filter and applications

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tel-00559107, version 1 - 24 Jan 2011<br />

Chapter 3<br />

Adaptive High-<strong>gain</strong> Observer:<br />

Definition <strong>and</strong> Convergence<br />

Contents<br />

3.1 Systems Under Consideration . . . . . . . . . . . . . . . . . . . . . 39<br />

3.2 Observer Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . 39<br />

3.3 Innovation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40<br />

3.4 Main Result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44<br />

3.5 Preparation for the Proof . . . . . . . . . . . . . . . . . . . . . . . 44<br />

3.6 Boundedness of the Riccati Matrix . . . . . . . . . . . . . . . . . . 47<br />

3.7 Technical Lemmas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49<br />

3.8 Proof of the Theorem . . . . . . . . . . . . . . . . . . . . . . . . . . 52<br />

3.9 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54<br />

37

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