These lecture notes focus on the synthesis of robust con- trollers for feedback systems, in the presence of unstruc- tured perturbations. It is assumed, as a prerequisites, that the reader is familiar with the basic linear system and au- tomatic control concepts. In part I interpolation theory is used to solve various single-input-single-output (SISO) ro- bust control problems. While the interpolation approach is awkward for multivariable systems, it provides a very natu- ral and simple approach for SISO systems. In particular the interpolation approach requires only elementary knowledge of complex variables, and provides a great deal of physical insight into various robust control problems. The required interpolation theory is developed in some detail. Part II is devoted to multivariable systems. Two approaches are out- lined: the Hankle-norm approach and the two-Riccati-equa- tion approach. In this part only a limited number of results are proven. However MATLAB software is presented for nu- merical solution. The book is addressed to researchers, practicing engineers, and students who wish to get an intro- duction to robust control theory for unstructured plant perturbations. The organization of the book as lecture notes and the presence of examples and of exercises at the end of many chapters allow to use the book as an introductory text in Robust Control courses.

Bringing together academics, researchers, and industrialists, "Climbing and Walking Robots 2003 (CLAWAR 2003)" provides a forum for cross-fertilization in the different specialities so that both state-of-the-art and industrial applications can be reported on. Original contributions, both industrial and those in new/emerging fields, provide a full picture of climbing and walking robots.

The interest in climbing and walking robots (CLAWAR) has increased considerably over recent years, addressing many application fields such as exploration/intervention in extreme environments, personal services, emergency rescue operations, transportation, entertainment, etc., and envisage humanoid robots evolving into mechatronic replicas of ourselves.

Topics covered include:

Biological Inspired Systems

Medical Systems

Control of CLAWAR

Design Methodology

System Modelling and Simulation

Modularity and System Architecture

Gait Generation and Stability of CLAWAR

Biped Locomotion

Multi-legged Locomotion

Micro Machines

Applications

Climbing Robots

Actuators, Sensors, Navigation, and Sensors Fusion

CLAWAR Network Workpackages