Atherton D. An Introduction to Nonlinearity in Control Systems

N.-Y.: BoBoCoAe, DA& Ventus Publishing ApS, 2011. - 176p.The book is intended to provide an introduction to the effects of nonlinear elements in feedback control systems. The book is concerned with the effects of nonlinearity in feedback control systems and techniques which can be used to design feedback loops containing nonlinear elements.
A central topic is the use of the Describing Function (DF) method since in combination with simulation it provides an excellent approach for the practicing engineer and follows on logically from a first course in classical control, such as the companion volume in this series. Some of the basic material on the topic can be found in my earlier book which is frequently referenced throughout the text.