Classical Book: Feedback Control Theory-J.C.Doyle,B.Francis,A.Tannenbaum

The book is addressed to students inengineering who have had an undergraduate course in signals and systems, including an introduction to frequency-domain methods of analyzing feedback control systems, namely, Bode plots and the Nyquist criterion. A prior course on state-spacetheory would be advantageous for some optional sections, but is not necessary.To keep the development elementary,the systems are single-input/single-output and linear, operating in continuous time.