Nikolai D. Christov

According to our database, Nikolai D. Christov authored at least 54 papers between 1981 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

A volatile fatty acids adaptive observer-based hierarchical optimal controller design to maximum gas production of two-stage anaerobic digestion process.

Hongxuan Li, Yang Tian, Haoping Wang, Ivan Simeonov, Nikolai D. Christov

Comput. Chem. Eng., February, 2024

2020

Kalman Filter based Newton Extremum Seeking Control for Maximum Gases Production Rates of Anaerobic Digestion Process.

Haoping Wang, Maobo Hu, Yang Tian, Ivan Simeonov, Lyudmila Kabaivanova, Nikolai D. Christov

Inf. Technol. Control., 2020

2019

Nonsingular Fast Terminal Sliding Mode Based Model-Free Control: Application to Glycemia Regulation Systems.

Yang Tian, Haoping Wang, Qi Wu, Maiting Hu, Nikolai D. Christov

Inf. Technol. Control., December, 2019

2018

Active fault tolerant control of wind turbine systems based on DFIG with actuator fault and disturbance using Takagi-Sugeno fuzzy model.

Shanzhi Li, Haoping Wang, Abdel Aitouche, Nikolai D. Christov

J. Frankl. Inst., 2018

Piecewise Continuous -Communication Disturbance Observer Design for Networked Visual Servo Control Systems with Sampled and Variable Delayed Output.

Haoping Wang, Rui Gong, Yang Tian, Nikolai D. Christov

Inf. Technol. Control., 2018

Sliding mode observer design for fault and disturbance estimation using Takagi-Sugeno model.

Shanzhi Li, Haoping Wang, Abdel Aitouche, Nikolai D. Christov

Eur. J. Control, 2018

Active fault tolerance control of a wind turbine system using an unknown input observer with an actuator fault.

Shanzhi Li, Haoping Wang, Abdel Aitouche, Yang Tian, Nikolai D. Christov

Int. J. Appl. Math. Comput. Sci., 2018

Architecture for Embedded Supervisory System of Distributed Renewable Energy Sources.

Cristian Miron, Severus Constantin Olteanu, Nicolai D. Christov, Abdel Aitouche

Proceedings of the 7th International Conference on Systems and Control, 2018

Unknown input observer design for faults estimation using linear parameter varying model. Application to wind turbine systems.

Shanzhi Li, Haoping Wang, Abdel Aitouche, Nicolai D. Christov

Proceedings of the 7th International Conference on Systems and Control, 2018

2016

Model-free-based terminal SMC of quadrotor attitude and position.

Haoping Wang, Xuefei Ye, Yang Tian, Gang Zheng, Nikolai D. Christov

IEEE Trans. Aerosp. Electron. Syst., 2016

Piecewise-continuous observers for linear systems with sampled and delayed output.

Haoping Wang, Yang Tian, Nikolai D. Christov

Int. J. Syst. Sci., 2016

2015

Attitude Control of a Quadrotor Using Model Free Based Sliding Model Controller.

Haoping Wang, Xuefei Ye, Yang Tian, Nikolai D. Christov

Proceedings of the 20th International Conference on Control Systems and Computer Science, 2015

2013

Discrete-time MPC with constraints for variable speed wind turbines.

Raluca Mateescu, Dan Stefanoiu, Nikolai D. Christov

Proceedings of the 2nd International Conference on Systems and Computer Science, 2013

Extended hybrid technique for control redesign with stabilization and correction.

Bogdan D. Ciubotaru, Marcel Staroswiecki, Nikolai D. Christov

Proceedings of the American Control Conference, 2013

2012

Kalman vs H∞ filter in terms of convergence and accuracy: Application to carrier frequency offset estimation.

Hector Poveda, Éric Grivel, Guillaume Ferré, Nikolai D. Christov

Proceedings of the 20th European Signal Processing Conference, 2012

Piecewise continuous observer design used for networked or visual servoing control systems.

Haoping Wang, Yang Tian, Nikolai D. Christov, Christian Vasseur

Proceedings of the IEEE International Conference on Control Applications, 2012

Recursive model free control of variable speed wind turbine systems.

Haoping Wang, Andreea Pintea, Nikolai D. Christov, Pierre Borne, Dumitru Popescu

Proceedings of the IEEE International Conference on Control Applications, 2012

2011

Routing Algorithm and Kinematic Model of Mobile Robots in Wireless Sensors Networks.

Popeanga Catalin, Nikolai D. Christov

Proceedings of the ICINCO 2011 - Proceedings of the 8th International Conference on Informatics in Control, Automation and Robotics, Volume 2, Noordwijkerhout, The Netherlands, 28, 2011

Modified Pseudo-Inverse Method with Generalized Linear Quadratic Regulator for fault tolerant Model Matching with prescribed stability degree.

Bogdan D. Ciubotaru, Marcel Staroswiecki, Nikolai D. Christov

Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference, 2011

2009

Estimation of autoregressive fading channels based on two cross-coupled <i>H</i>_∞ filters.

Ali Jamoos, Éric Grivel, Nikolai D. Christov, Mohamed Najim

Signal Image Video Process., 2009

2008

On the Local Sensitivity of the Discrete-Time Control Problem.

A. S. Yonchev, Petko Hr. Petkov, Nikolai D. Christov, Michail M. Konstantinov

Proceedings of the Numerical Analysis and Its Applications, 4th International Conference, 2008

LAPACK-Based Condition Estimates for the Discrete-Time LQG Design.

Petko Hr. Petkov, Michail M. Konstantinov, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, 4th International Conference, 2008

Perturbation Bounds for Certain Matrix Expressions and Numerical Solution of Matrix Equations.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, 4th International Conference, 2008

2007

Dual H_infinity Algorithms for Signal Processing - Application to Speech Enhancement.

David Labarre, Éric Grivel, Mohamed Najim, Nikolai D. Christov

IEEE Trans. Signal Process., 2007

Numerical Methods for Robust Control.

Petko Hr. Petkov, A. S. Yonchev, Nikolai D. Christov, Michail M. Konstantinov

Proceedings of the Large-Scale Scientific Computing, 6th International Conference, 2007

2006

Numerical Method for Regional Pole Assignment of Linear Control Systems.

Petko Hr. Petkov, Nikolai D. Christov, Michail M. Konstantinov

Proceedings of the Numerical Methods and Applications, 6th International Conference, 2006

Improved Sensitivity Estimate for the <i>H</i>² Estimation Problem.

Nikolai D. Christov, Mohamed Najim, Éric Grivel

Proceedings of the Computational Science, 2006

2005

The technique of splitting operators in perturbation control theory.

Mihail Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

Kybernetika, 2005

Relevance of H_∞ filtering for speech enhancement.

David Labarre, Éric Grivel, Mohamed Najim, Nikolai D. Christov

Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

A fast time-optimal control synthesis algorithm for a class of linear systems.

Borislav Penev, Nikolai D. Christov

Proceedings of the American Control Conference, 2005

2004

Conditioning and Error Estimation in the Numerical Solution of Matrix Riccati Equations.

Petko Hr. Petkov, Michail M. Konstantinov, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, Third International Conference, 2004

Sensitivity Analysis of Generalized Lyapunov Equations.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, Third International Conference, 2004

New Perturbation Bounds for the Continuous-Time <i>H</i> _infinity-Optimization Problem.

Nikolai D. Christov, Michail M. Konstantinov, Petko Hr. Petkov

Proceedings of the Numerical Analysis and Its Applications, Third International Conference, 2004

On the state-space analysis in the synthesis of time-optimal control for a class of linear systems.

Borislav G. Penev, Nicolai D. Christov

Proceedings of the 2004 American Control Conference, 2004

2003

LAPACK-based condition and error estimators for Kalman filter design.

Petko Hr. Petkov, Michail M. Konstantinov, Nikolai D. Christov

Proceedings of the 42nd IEEE Conference on Decision and Control, 2003

2002

New perturbation bounds for the discrete-time H^∞ filtering problem.

Nikolai D. Christov, Mohamed Najim, Éric Grivel, David Henry

Proceedings of the 41st IEEE Conference on Decision and Control, 2002

On the synthesis of time optimal control for a class of linear systems.

Borislav G. Penev, Nicolai D. Christov

Proceedings of the American Control Conference, 2002

Conditioning of the discrete-time infinite-horizon H_∞ filtering problem.

Nikolai D. Christov, Mohamed Najim, Éric Grivel, David Henry

Proceedings of the American Control Conference, 2002

On the local sensitivity of the mixed H₂/H_∞ optimisation problem.

Nikolai D. Christov, M. M. Koristantinov, Petko Hr. Petkov

Proceedings of the American Control Conference, 2002

2001

On the conditioning of the generalised discrete-time Lyapunov and Riccati equations.

Da-Wei Gu, Suzanne Lesecq, Nikolai D. Christov, Michail M. Konstantinov, Petko Hr. Petkov, Alain Barraud

Proceedings of the 6th European Control Conference, 2001

On the non-local sensitivity of Sylvester equations.

Nikolai D. Christov, Suzanne Lesecq, Mihail Mihaylov Konstantinov, Petko Hr. Petkov, Alain Barraud

Proceedings of the American Control Conference, 2001

2000

On the Local Sensitivity of the Lyapunov Equations.

Suzanne Lesecq, Alain Barraud, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, 2000

From Sensitivity Analysis to Random Floating Point Arithmetics - Application to Sylvester Equations.

Alain Barraud, Suzanne Lesecq, Nikolai D. Christov

Proceedings of the Numerical Analysis and Its Applications, 2000

New perturbation bounds for Sylvester equations.

Nikolai D. Christov, Suzanne Lesecq, Michail M. Konstantinov, Petko Hr. Petkov, Alain Barraud

Proceedings of the 39th IEEE Conference on Decision and Control, 2000

Sensitivity analysis of generalized Riccati equations.

Michail M. Konstantinov, Petko Hr. Petkov, Nicolai D. Christov, Alain Barraud, Suzanne Lesecq, Da-Wei Gu

Proceedings of the American Control Conference, 2000

1997

Sensitivity analysis of the feedback synthesis problem.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

IEEE Trans. Autom. Control., 1997

1996

Numerical Solution of High Order Matrix Riccati Equations.

Petko Hr. Petkov, Nikolai D. Christov, Michail M. Konstantinov

Proceedings of the Numerical Analysis and Its Applications, First International Workshop, 1996

1994

Nonlocal Perturbation Analysis of the Schur System of a Matrix.

M. M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

SIAM J. Matrix Anal. Appl., April, 1994

1993

Comments on "Scaling of the discrete-time algebraic Riccati equation to enhance stability of the Schur solution method" [with reply].

Petko Hr. Petkov, Nikolai D. Christov, Mihail Konstantinov, T. Gunmundson, Crystal Kenney, Alan J. Laub

IEEE Trans. Autom. Control., 1993

Perturbation analysis of the discrete Riccati equation.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

Kybernetika, 1993

1990

Perturbation Analysis of Matrix Quadratic Equations.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

SIAM J. Sci. Comput., 1990

1986

Numerically stable algorithm for pole assignment of linear single-input systems.

Petko Hr. Petkov, Nikolai D. Christov, Michail M. Konstantinov

Kybernetika, 1986

1984

Remark on algorithm 590.: Fortran subroutines for computing deflating subspaces with specified spectrum.

Petko Hr. Petkov, Nikolai D. Christov, Mihail Mihaylov Konstantinov

ACM Trans. Math. Softw., 1984

1981

Invariants and canonical forms for linear multivariable systems under the action of orthogonal transformation groups.

Michail M. Konstantinov, Petko Hr. Petkov, Nikolai D. Christov

Kybernetika, 1981