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Schaums Outline Of Theory And Problems Of Feedback And Control Systems by DiStefano

Feedback processes abound in nature and, over the last few decades, the word feedback, like
a computer, has found its way into our language far more pervasively than most others of technological origin. The conceptual framework for the theory of feedback and that of the discipline in which it is embedded-control systems engineering-have developed only since World War 11. 

When our first an edition was published, in 1967, the subject of linear continuous-time (or analog) control systems had already attained a high level of maturity, and it was (and remains) often designated classical control by the cognoscenti. This was also the early development period for the digital computer and discrete-time data control processes and applications, during which courses and books in " sampled-data" control systems became more prevalent. Computer-controlled and digital control systems are now the terminology of choice for control systems that include digital computers or microprocessors.

In this second edition, as in the first, we present a concise, yet quite comprehensive, treatment of
the fundamentals of feedback and control system theory and applications, for engineers, physical,
biological and behavioral scientists, economists, mathematicians and students of these disciplines.
Knowledge of basic calculus and some physics are the only prerequisites. The necessary mathematical tools beyond calculus, and the physical and nonphysical principles and models used in applications, are developed throughout the text and in the numerous solved problems.

We have modernized the material in several significant ways in this new edition. We have first of all
included discrete-time (digital) data signals, elements and control systems throughout the book,
primarily in conjunction with treatments of their continuous-time (analog) counterparts, rather than in
separate chapters or sections. In contrast, these subjects have for the most part been maintained
pedagogically distinct in most other textbooks. Wherever possible, we have integrated these subjects, at the introductory level, in a unified exposition of continuous-time and discrete-time control system

The emphasis remains on continuous-time and linear control systems, particularly in the
solved problems, but we believe our approach takes much of the mystique out of the methodologic differences between the analog and digital control system worlds. In addition, we have updated and
modernized the nomenclature, introduced state variable representations (models) and used them in a
strengthened chapter introducing nonlinear control systems, as well as in a substantially modernized the chapter introducing advanced control systems concepts. We have also solved numerous analog and digital control system analysis and design problems using special purpose computer software, illustrating the power and facility of these new tools.

The book is designed for use as a text in a formal course, as a supplement to other textbooks, as a
reference or as a self-study manual. The quite comprehensive index and highly structured format should facilitate use by any type of readership. Each new topic is introduced either by section or by chapter, and each chapter concludes with numerous solved problems consisting of extensions and proofs of the theory, and applications from various fields.

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