The essential introduction to the principles and applications of feedback systems—now fully revised and expanded This textbook covers the mathematics needed to model, analyze, and design feedback systems. Now more user-friendly than ever, this revised and expanded edition of Feedback Systems is a one-volume resource for students and researchers in mathematics and engineering. It has applications across a range of disciplines that utilize feedback in physical, biological, information, and economic systems. Karl Åström and Richard Murray use techniques from physics, computer science, and operations research to introduce control-oriented modeling. They begin with state space tools for analysis and design, including stability of solutions, Lyapunov functions, reachability, state feedback observability, and estimators. The matrix exponential plays a central role in the analysis of linear control systems, allowing a concise development of many of the key concepts for this class of models. Åström and Murray then develop and explain tools in the frequency domain, including transfer functions, Nyquist analysis, PID control, frequency domain design, and robustness. Features a new chapter on design principles and tools, illustrating the types of problems that can be solved using feedback Includes a new chapter on fundamental limits and new material on the Routh-Hurwitz criterion and root locus plots Provides exercises at the end of every chapter Comes with an electronic solutions manual An ideal textbook for undergraduate and graduate students Indispensable for researchers seeking a self-contained resource on control theory

Archaeologists in Print is a history of popular publishing in archaeology in the nineteenth and twentieth centuries, a pivotal period of expansion and development in both archaeology and publishing. It examines how British archaeologists produced books and popular periodical articles for a non-scholarly audience, and explores the rise in archaeologists’ public visibility. Notably, it analyses women’s experiences in archaeology alongside better known male contemporaries as shown in their books and archives. In the background of this narrative is the history of Britain’s imperial expansion and contraction, and the evolution of modern tourism in the Eastern Mediterranean and Middle East. Archaeologists exploited these factors to gain public and financial support and interest, and build and maintain a reading public for their work, supported by the seasonal nature of excavation and tourism. Reinforcing these publishing activities through personal appearances in the lecture hall, exhibition space and site tour, and in new media – film, radio and television – archaeologists shaped public understanding of archaeology. It was spadework, scripted. The image of the archaeologist as adventurous explorer of foreign lands, part spy, part foreigner, eternally alluring, solidified during this period. That legacy continues, undimmed, today. Praise for Archaeologists in Print This beautifully written book will be valued by all kinds of readers: you don't need to be an archaeologist to enjoy the contents, which take you through different publishing histories of archaeological texts and the authors who wrote them. From the productive partnership of travel guide with archaeological interest, to the women who feature so often in the history of archaeological publishing, via closer analysis of the impact of John Murray, Macmillan and Co, and Penguin, this volume excavates layers of fascinating facts that reveal much of the wider culture of the late nineteenth and twentieth centuries. The prose is clear and the stories compulsive: Thornton brings to life a cast of people whose passion for their profession lives again in these pages. Warning: the final chapter, on Archaeological Fictions, will fill your to-be-read list with stacks of new titles to investigate! This is a highly readable, accessible exploration into the dynamic relationships between academic authors, publishers, and readers. It is, in addition, an exemplar of how academic research can attract a wide general readership, as well as a more specialised one: a stellar combination of rigorous scholarship with lucid, pacy prose. Highly recommended!' Samantha Rayner, Director of UCL Centre for Publishing; Deputy Head of Department and Director of Studies, Department of Information Studies, UCL