Feedback-Systems

This book was an inspiration. Dr. Ooi is a genius. I would recommend this book to anyone, who would like to enlighten themselves with knowledge of channel with feedback. Every college campus should own one.

"The Bible of channel feedback!" Dr Ooi has a keen understanding of the human condition and how it related to error correction and compression. I believe "James" has mastered communication without actually using any words from the english language!

With a crisp and cogent style, the author sets forth a new mathematical framework that can be used to develop and analyze coding schemes that use receiver feedback. We have already used certain concepts described in the text to design an improved version of our company's current microwave communication technology. This book is a must-buy for anyone involved in communication systems or in the practical application of information theoretic principles. This will surely place Dr. Ooi in a class with Shannon, Fano, Gallager, Wyner, Ziv, and the other intellectual giants in the field!

Box-Jenkins is THE definitive, foundational text in time series analysis. Mastery of this volume requires extensive graduate level understanding of mathematical statistics. While difficult even for intermediate statistical practitioners, this text is necessary for any professional who examines time series data and well worth the considerable effort to acquire mastery.

In the early 1970s I was working on practical forecasting methods to apply to the U.S. Army supply depot workloads. Exponential smoothing was the commonly used "automatic" technique (once smoothing constants have been determined) that had great advantages over the informal methods used by the Army. Then someone told me that Box-Jenkins techniques were more general and powerful. I got a copy of the first edition published in 1970 and found that I could read and understand it even though I had little statistical training. I had a bachelors degree in mathematics. I got to appreciate the book even more when I took a short course from George Box, George Tiao and David Pack based on the book. I began to grasp some of the key ideas of stationary and nonstationary time series and learned about model selection, diagnostic checking and estimation. This started my interest in becoming a statistician and gave me the practical side of time series analysis first. I later specialized in it and got a Ph.D. in statistics.

Gwilym Jenkins died many years prior to this edition and Box's colleague Greogory Reinsel took on the task of helping to revise and update it.

It retains its original flavor. It is an applied book with many practical and illustrative examples. It concentrates on the three stages of time series analysis: modeling building, selection, estimation and diagnostic checking and how to iterate the process toward a good solution. The ARIMA time series models are what are considered. The theory of stationary and nonstationary time series is introduced to motivate interpretation of autocorrelation and partial autocorrelation in the model identification phase. Operator notation is introduced and used throughout the book to simplify equations. For me it helped simplify things and illuminate some concepts. But many readers found it difficult and confusing. the book is very systematic and practical. Many of the examples are real examples from Box's work in the chemical industry and his consulting during his career at the University of Wisconsin and also the consulting experience of Gwilym Jenkins in England.

The publishers and some amazon reviewers say that this edition is a major revision. The second edition published in 1976 was criticized for being essentially a reprint of the first. Although there is a new chapter 12 on intervention analysis and outlier detection it mainly is an expansion of ideas already discussed in the first edition. Theoretical results are kept aside in appendices as in previous editions.

This is not an up-to-date text on the theory of time series. It deals strictly with the time domain approach and does not include recent advances including nonlinear and bilinear models, models with non-Gaussian innovations and bootstrap or other resampling methods.

To get a balanced approach that includes the theory for frequency and time domain approaches the book by Shumway, the latest edition of the Brockwell and Davis text and the latest edition of Fuller's text are appropriate. For a graduate course I taught at UC Santa Barbara in 1981 I used the first edition of Fuller's book. Anderson provides a thorough account of the time domain theory. Excellent texts that specialize in the frequency domain approach are Bloomfield's second edition and the two volume book by Priestley. Brillinger's text is also worthwhile for those interested in spectral theory (frequency domain statistics).

Although there are many things that is text does not cover, it remains the classical text on a rich class of time domain methods that are still very practical. This is a text I bought for reference even though I still have the first edition.

we are one private bank (BCM) in morocco please send us a proforma invoice and a if it's possible a commercial catalog describing the contents of th book. thank you

I'm a physics grad student and needed to frequency stabilize a laser using a rather complicated feedback system. I had no controls theory background but needed to "get up to speed" fast--this book did it!

If you are faced with designing a working feedback system and are not a controls theory expert, this book is the single most useful reference you would ever hope to find. The explanations are intuitive and the practical advice indispensible. This book saved me many weeks on the learning curve. I was able to understand and measure the most challenging aspects of my particular system and clearly see how to predict performance.

It's very streamlined: the emphasis is clearly to deliver the relevant information with the least amount of overhead. As such, the only missing part of the book that I wanted is a list of references. Recognizing the insight of the authors, I would have liked a list of their favorite controls publications!

Here was my assignment:

Make a proof of concept system that points a laser at a moving target.

My problem:
I knew how to write the software, I knew how to put the hardware together, but, I had no idea what to put in my feedback loop to make this thing track.

Oh yeah, I had to do this in two weeks.

So I read part of this book (my suggestion is start in the middle and read the math section when you /need/ to understand something in more depth) and I completed the assignment on time.

End result: I am not an expert on control systems theory, but by reading this book, I was able to get up and running in a matter of days.

This is truly an excellent book. Speaking as a scientist that uses feedback loops as merely one component of experimental apparatus, this book contains everything you need and nothing that you don't. It contains explanations of analog and digital systems and illustrates these with practical and common examples.

This is the first book I give to graduate students and within three days they are up to speed both with the language of feedback control theory and the principles. Moreover the explanations provide an intuitive understanding of important concepts and as a result are not easily forgotten. I highly recommend it to all designers, builders and users of feedback control systems.

The techniques described in this book have applications well beyond process or parts industries. I'm an engineer in mobile communications (an industry that desperately needs quality improvement) and I'm using SPC methods to eliminate choppy voice and dropped calls using feedback mechanisms between cell phones and base-stations. This book has provided me with a comprehensive framework for real-time network quality management. Don't be put off by its somewhat quaint language: this book gives real solutions to modern real-time signal processing problems.

Professor George Box is a world renowned statistician, one of the greatest applied statisticians of the 20th Century. He has made fundamental contributions to the theory and practice of statistical methods. He is a wonderful lecturer and writer and can write on many levels. He has co-authored many classic books in statistics including texts on times series analysis and control, Bayesian methods, experimental designs, response surfaces and evolutionary operation. His work in design, response surface methods, time series and evolutionary operation were first motivated by his work in the chemical industry.

The text with Jenkins on time series analysis and control is a classic and had a major impact on the application of time series methods in business and industry. The systematic approach that they advocated was quickly referred to as the Box-Jenkins methodology. Although time series forecasting applications were well accepted by industry, the portion of the text demonstrating application to feedback control systems was largely ignored.

The 1980s and 1990s saw a resurgence of application of statistical process control in manufacturing. Basic Statistical Process Control (SPC) deals with control charts that assume independent identically distributed observations when "the system is under control". This is the basic theme for the Shewhart control charts and the cumulative sum charts that are standard in basic SPC. Hahn and Tucker at General Electric (among others) recognized that the approach could be generalized to dependent stationary processes using the Box-Jenkins methodology. In this text Box and Luceno describe this methodology and the recent results in the context of monitoring for process control and the incorporation of feedback adjustments to the process when the process goes out of control. Basically, they have taken the ideas on feedback control systems from the Box and Jenkins book and found applications to the control of manufacturing processes.

This is very useful stuff and is certainly worth knowing about. However if the reader is looking for a good introduction to standard SPC methods this is not the book he/she wants.

George Box and Alberto Luceno give you the best advice you need for Engineering Process Control (EPC) and SPC theory in this 300 page book. New methods, such as Cusum, and EWMA are also explained. Enough knowledge for a practician and more if you want in detail. They don't bore you by deriving equations you care less. I am an engineer in manufacturing and know when I need to study an equation or accept it as correct. In year 2000's, SPC and EPC will be emphasized in manufacturing even more than ever. Engineering process control has benefited from SPC in an exponentially growing rate. My motto is "SPC is the blood test of the manufacturing process control - S. Can". I recommend this book to all practicians of EPC.

Observers in Control Systems is a practical guide to observers, and is especially oriented towards motion control.

The author is a respected expert in the motion control industry, and he brings much experience to this difficult topic, presenting it in a clear and direct format. The author presents complex topics in a simple to understand fromat, and avoids the often overly complex math found in the traditional academic oriented texbooks.

This book has two novel features. The first is the author's use of the traditional signal flow diagrams and frequency analysis based approach to explaining observer theory. This approach makes these concepts much easier to understand, and avoids the complex and elaborate linear algebra required by other observer textbooks.

The second feature is the use of the dreadily ownloadable simulation program, ModelQ. ModelQ is a graphical simulation, modeling and analysis program that helps illustrate observer concepts. This software contributes greatly to the reader's understanding. Numerous examples are included to help illuminate various observer topics.

This book's practical and "hands-on" style makes it a must-have addition to your control textbook toolbox. You will be able to apply the techniques presented in this book to improve your control system designs.

As he did with his Control System Design Guide, George Ellis has managed to take a key concept, the observer, and explain it in terms that the average, practicing, control engineer can understand, and better yet: Apply. If you believe that all you need to know can be desribed in classical control terms, then this book is for you. If you shun anything that refers to "modern control theory," or "state space" then this book is for you. If you've always wanted to apply principles of modern control theory, but never figured out how to reduce it to practice, then this book is for you. If you're frustrated by the fact that you're colleagues eyes glaze over when you talk about "State Estimators," then this book is for you. Or if you simply want to be the control engineer that takes one or more of your best control loops up another notch in performance, then this book is for you. In this book, George Ellis explains, in simple control terms, what an observer is and how it can be applied. Ellis, provides plenty of information for you to asses the risk/benefit of applying observers to a process, e.g., how good must your process/sensor model be for the observer to be effective (You'll be surprised at how robust they are). Finally, Ellis provides many ready-to-run simulation examples, written in Visual Model-Q, a very powerful control system modeling environment. Visual Model-Q is in turn available to download at a great price: free!

Duane McRuer is known in the field as the grandfather of the field of aircraft flight control. His BuAer reports were among the key references used by flight control designers. This book summarizes much of what was in these reports and presents an integrated picture of flight control system design. His unique approach to classical control theory and multiloop control system design alone makes this an interesting book.

I was hunting for a single book which covers the area of signals and systems, communication theory, design (transforms related to these topics) using MATLAB (I have a student version 5.0). Every topic is well illustrated with MATLAB programs along with the associated terms, definitions and the mathematical details along with figures for proper visualization. This book an excellent supplement to standard textbooks in these areas.The presentation is crisp and clear. I experienced the "joy of understanding" while using this text with the software. GRAB A COPY AND UNDERSTAND THE WORLD OF TRANSFORMS!

My dad wrote this book. He sure is a smart guy.
love,
Alison

The method to detemine the loop gain: loop gain is -1 over ((1 over Toc) +(1 over Tsc))

This is a really good book that simplified control system for the real world. Most text spend too much time on theory and analysis and end the discussion with a bunch of equations and graphs without explaining how to implement the design. This book covers both analog and digital control, and lets you download a software from the author's web site. This software, ModelQ, lets you play with various parameters so you can see how the system behaves when it is not optimized.

One drawback with the book is it only covers PID control and its variants, but doesn't cover state-space control. While state-space control may be considered "overkill" by many control engineers, state-space is used in industry. The decision to use state-space is often not in the hands of individual engineers, so it may not be an option to ignore state-space. It would be nice if Mr. Ellis could cover state-space in his next edition of the book.

This book is a great guide to problems and solutions for modern control systems. Many text will have page after page of formulas with little link to the real world of control system design. Mr. Ellis provides answers to the problems faced by todays engineers.

George Ellis does a great job of bridging the gap between academia and industy in Control System Design Guide 2nd Edition. This book gives the practicing engineer the information necessary to put into practice much of the theory that he/she learned in the university. The book primarily focuses on motion control and modeling of motion systems. If you are working on a control system and would like to make sure you get the performance you need, you should buy this book.