Denis Efimov

About

Denis Efimov is a leading researcher in nonlinear control theory, with key contributions to adaptive observers, robust robotics, and disturbance compensation. His work on impulsive adaptive observers (2014, 55 citations) introduced novel techniques to improve persistency of excitation, enabling more reliable state estimation for nonlinear systems. Efimov has significantly advanced the control of autonomous robots, particularly through his development of input-to-state stability methods for obstacle avoidance (2016, 43 citations) and finite-time stabilization of nonholonomic mobile robots under input disturbances (2014, 10 citations). His most applied impact is in aerial robotics: he designed altitude controllers for indoor blimp robots using high-order sliding mode differentiators and disturbance compensation (2018, 24 citations; 2019, 21 citations), addressing switched systems with time-delays and bounded uncertainties. Efimov also pioneered universal robust adaptive control for robot manipulators (2015, 12 citations), eliminating the need for dynamic models while ensuring robustness to payload changes. His recent work on event-triggered observation under data rate constraints (2022, 11 citations) addresses modern communication-limited control systems. With over 200 total citations across his top papers, Efimov’s research bridges theoretical rigor and practical robotics, offering engineers powerful tools for real-time control in uncertain environments.

Research Focus

Key Achievements

Top Papers

1. 1
   Design of impulsive adaptive observers for improvement of persistency of excitation

   55 citations · 2014
2. 2
   Avoiding local minima in the potential field method using input-to-state stability

   43 citations · 2016
3. 3
   Differentiator application in altitude control for an indoor blimp robot

   24 citations · 2018
4. 4
   Disturbance compensation based controller for an indoor blimp robot

   21 citations · 2019
5. 5
   Finite-time obstacle avoidance for unicycle-like robot subject to additive input disturbances

   14 citations · 2015
6. 6
   Altitude Control for an Indoor Blimp Robot

   13 citations · 2017
7. 7
   Universal Robust Adaptive Control of Robot Manipulators Using Real Time Estimation

   12 citations · 2015
8. 8
   An event-triggered observation scheme for systems with perturbations and data rate constraints

   11 citations · 2022
9. 9
   Improved altitude control method with disturbance compensation for an indoor blimp robot

   11 citations · 2017
10. 10
    Finite-Time Supervisory Stabilization for a Class of Nonholonomic Mobile Robots Under Input Disturbances

    10 citations · 2014

Key Collaborators

Contact & Links