A. Ball and H. K. Khalil, High-gain-observer tracking performance in the presence of measurement noise, 2009 American Control Conference, 2009.
DOI : 10.1109/ACC.2009.5160277

J. Barbot, T. Boukhobza, and M. Djema¨?djema¨?, Sliding mode observer for triangular input form, Proceedings of 35th IEEE Conference on Decision and Control, 1996.
DOI : 10.1109/CDC.1996.572727

J. Barbot, M. Fliess, and T. Floquet, An algebraic framework for the design of nonlinear observers with unknown inputs, 2007 46th IEEE Conference on Decision and Control, 2007.
DOI : 10.1109/CDC.2007.4434695

URL : https://hal.archives-ouvertes.fr/inria-00172366

J. P. Barbot, D. Boutat, and T. Floquet, An observation algorithm for nonlinear systems with unknown inputs, Automatica, vol.45, issue.8, 1970.
DOI : 10.1016/j.automatica.2009.04.009

URL : https://hal.archives-ouvertes.fr/inria-00391819

M. Djemai, J. Barbot, and H. Khalil, Digital multirate control for a class of non-linear singularly perturbed systems, International Journal of Control, vol.72, issue.10, pp.851-865, 1999.
DOI : 10.1080/002071799220597

M. Darouach, M. Zasadzinski, and S. J. Xu, Full-order observers for linear systems with unknown inputs, IEEE Transactions on Automatic Control, vol.39, issue.3, pp.606-609, 1994.
DOI : 10.1109/9.280770

URL : https://hal.archives-ouvertes.fr/hal-00098125

S. Diop, J. W. Grizzle, and F. Chaplais, On numerical differentiation algorithms for nonlinear estimation, Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), pp.1133-1138, 2000.
DOI : 10.1109/CDC.2000.912005

S. V. Drakunov and V. I. Utkin, Sliding mode observers, IEEE Conference on Decision and Control, 1995.

T. Floquet, J. Barbot, W. Perruquetti, and M. Djema¨?djema¨?, On the robust fault detection via a sliding mode disturbance observer, International Journal of Control, vol.4, issue.7, pp.622-629, 2004.
DOI : 10.1016/0005-1098(76)90041-8

URL : https://hal.archives-ouvertes.fr/hal-00762283

T. Floquet and J. P. Barbot, Super twisting algorithm-based step-by-step sliding mode observers for nonlinear systems with unknown inputs, International Journal of Systems Science, vol.32, issue.10, pp.803-815, 2007.
DOI : 10.1109/9.975511

URL : https://hal.archives-ouvertes.fr/inria-00128137

J. P. Gauthier, H. Hammouri, and S. Othman, A simple observer for nonlinear systems applications to bioreactors, IEEE Transactions on Automatic Control, vol.37, issue.6, pp.875-880, 1992.
DOI : 10.1109/9.256352

M. Hou and P. C. Müller, Design of observers for linear systems with unknown inputs, IEEE Transactions on Automatic Control, vol.37, issue.6, pp.871-875, 1992.
DOI : 10.1109/9.256351

A. Isidori, Nonlinear Control Systems, Communication and Control Engineering Series, 1995.

W. Kang, Moving Horizon Numerical Observers of Nonlinear Control Systems, IEEE Transactions on Automatic Control, vol.51, issue.2, pp.344-350, 2006.
DOI : 10.1109/TAC.2005.863509

A. J. Krener and W. Respondek, Nonlinear Observers with Linearizable Error Dynamics, SIAM Journal on Control and Optimization, vol.23, issue.2, pp.197-216, 1985.
DOI : 10.1137/0323016

A. J. Krener and W. Kang, Locally Convergent Nonlinear Observers, SIAM Journal on Control and Optimization, vol.42, issue.1, pp.155-177, 2003.
DOI : 10.1137/S0363012900368612

URL : http://hdl.handle.net/10945/25494

P. V. Kokotovic, H. K. Khalil, and J. O. Reilly, Singular Perturbation Methods in Control: Analysis and Design, 1986.
DOI : 10.1137/1.9781611971118

S. Oh and H. K. Khalil, Nonlinear Output-Feedback Tracking Using High-gain Observer and Variable Structure Control**An earlier version of this paper was presented at the 1995 IFAC Nonlinear Control Systems Design Symposium, held in Lake Tahoe, U.S.A. in June 1995.,11A globally bounded output-feedback variable structure controller with a high-gain observer is designed for a feedback-linearizable minimum-phase nonlinear system in the presence of unknown disturbance, Automatica, vol.33, issue.10, pp.1845-1856, 1997.
DOI : 10.1016/S0005-1098(97)00111-8

A. Levant, Higher-order sliding modes, differentiation and output-feedback control, International Journal of Control, vol.76, issue.9-10, pp.924-941, 2003.
DOI : 10.1080/0020717031000099029

R. Marino, W. Respondek, and A. J. , Almost disturbance decoupling for single-input single-output nonlinear systems, IEEE Transactions on Automatic Control, vol.34, issue.9, pp.1013-1017, 1989.
DOI : 10.1109/9.35821

J. Rudolph and M. Zeitz, A block triangular nonlinear observer normal form, Systems & Control Letters, vol.23, issue.1, pp.1-8, 1994.
DOI : 10.1016/0167-6911(94)90075-2

V. I. Utkin, Sliding Modes in Control and Optimization, 1992.
DOI : 10.1007/978-3-642-84379-2

X. H. Xia and W. B. Gao, Nonlinear Observer Design by Observer Error Linearization, SIAM Journal on Control and Optimization, vol.27, issue.1, pp.199-216, 1989.
DOI : 10.1137/0327011