The author received the Ph.D. degree in Automatic Control from the Saint-Petersburg State Electrical Engineering University (Russia) in 2001, and the Dr.Sc. degree in Automatic control in 2006 from Institute for Problems of Mechanical Engineering RAS (Saint-Petersburg, Russia). From 2000 to 2009 he was research fellow of the Institute for Problems of Mechanical Engineering RAS, Control of Complex Systems Laboratory. From 2006 to 2011 he was working with the LSS (Supelec, France), the Montefiore Institute (University of Liege, Belgium) and the Automatic control group at IMS lab (University of Bordeaux I, France). Since 2011 he joined the Non-A team at INRIA-LNE centre in Lille, France. He is a member of the IFAC TCs on Adaptive and Learning Systems and Control for Society. He is Senior member of IEEE. His main research interests include nonlinear oscillation analysis, observation and control, switched and nonlinear system stability. During his scientific carrier he published over 140 papers, books and technical reports. The subject of the dissertation deals with the main research direction of the author: analysis, estimation and control in nonlinear oscillating systems. It is an emerging area of research touching many applicative domains. This field strives for new estimation and control algorithms since frequently, due to peculiarities of this type of systems, the conventional approaches do not provide solutions with a satisfactory performance. Some control and estimation solutions for oscillating systems proposed by the author are given in the thesis. The hybrid or/and supervisory systems method is selected as the basement of design of new tools for analysis, observation and control of nonlinear oscillations. The first chapter of the thesis deals with presentation of scientific background and experience of the author. In the second chapter an approach to analysis of existence of oscillations is presented, an adaptive control algorithm for bifurcation control is briefly described, and an approach for entrainment of periodical systems based on PRC is introduced. In the third chapter the main planned future directions of research of the author are given. Appendices contain the full list of publications and the texts of four selected papers.
