Loops And Roots

Author : Venceslav F. Kroupa
Publisher : John Wiley & Sons
Page : 334 pages
File Size : 44,5 Mb
Release : 2003-09-12
Category : Technology & Engineering
ISBN : 9780470865125

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Phase Lock Loops and Frequency Synthesis by Venceslav F. Kroupa Pdf

Phase lock loop frequency synthesis finds uses in a myriad of wireless applications - from local oscillators for receivers and transmitters to high performance RF test equipment. As the security and reliability of mobile communication transmissions have gained importance, PLL and frequency synthesisers have become increasingly topical subjects. Phase Lock Loops and Frequency Synthesis examines the various components that make up the phase lock loop design, including oscillators (crystal, voltage controlled), dividers and phase detectors. Interaction amongst the various components are also discussed. Real world problems such as power supply noise, shielding, grounding and isolation are given comprehensive coverage and solved examples with MATHCAD programs are presented throughout. Presents a comprehesive study of phase lock loops and frequency synthesis in communication systems Written by an internationally-recognised expert in the field Details the problem of spurious signals in PLL frequency synthesizers, a topic neglected by available competing titles Provides detailed theorectical background coupled with practical examples of state-of-the-art device design MATHCAD programs and simulation software to accompany the design exercises and examples This combination of thorough theoretical treatment and guidance on practical applications will appeal to mobile communication circuit designers and advanced electrical engineering students.

Author : J. Encinas
Publisher : Springer Science & Business Media
Page : 207 pages
File Size : 44,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461530640

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Phase Locked Loops by J. Encinas Pdf

This book is devoted to a detailed and comprehensive study of phase locked loops aimed at preparing the reader to design them and to understand their applications. It is written at a level corresponding to a final year electronics undergraduate or a postgraduate student. Linear and semidigital phase locked loops are studied in nine chapters. Most of this book is concerned with analogue PLLs, but there are chapters on semidigital PLLs and on applications. The mathematical tools and background required are described at the end of the book. Important symbols A Amplifier gain Mixer gain (V -1) A Filter bandwidth (Hz) Bi Low pass filter bandwidth (Hz) BL Unilateral equivalent noise bandwidth (Hz) Bn D(s) Polynomial of variable s Peak amplitude of signal voltage (V) Ee Peak amplitude of reference signal voltage (V) Er Carrier frequency (Hz) Ie Intermediate frequency (Hz) Ii Intermediate frequency (Hz) IIF Local oscillator frequency (Hz) it Reference frequency (Hz) Ir F(s) Transfer function of loop filter G Amplifier voltage gain k FM modulator sensitivity (rad s -1 V -1) m K Motor coefficient (rad s -1) Back-electromotive force coefficient (V s rad -1) K1 Reverse back -electromotive force coefficient (rad V -1 S -1) Ke PC conversion gain (V rad s -1) Kd Motor torque coefficient (N m A -1) KM 1 1 VCO conversion gain (rads- V- ) Ko Conversion gain of PLL (S-2) Kv m Modulation factor m Integer n Integer n Loop order N ,N Integers representing division 1 2 1

Author : Donald R. Stephens
Publisher : Springer Science & Business Media
Page : 422 pages
File Size : 50,6 Mb
Release : 2007-05-08
Category : Technology & Engineering
ISBN : 9780306473142

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Phase-Locked Loops for Wireless Communications by Donald R. Stephens Pdf

Phase-Locked Loops for Wireless Communications: Digitial, Analog and Optical Implementations, Second Edition presents a complete tutorial of phase-locked loops from analog implementations to digital and optical designs. The text establishes a thorough foundation of continuous-time analysis techniques and maintains a consistent notation as discrete-time and non-uniform sampling are presented. New to this edition is a complete treatment of charge pumps and the complementary sequential phase detector. Another important change is the increased use of MATLAB®, implemented to provide more familiar graphics and reader-derived phase-locked loop simulation. Frequency synthesizers and digital divider analysis/techniques have been added to this second edition. Perhaps most distinctive is the chapter on optical phase-locked loops that begins with sections discussing components such as lasers and photodetectors and finishing with homodyne and heterodyne loops. Starting with a historical overview, presenting analog, digital, and optical PLLs, discussing phase noise analysis, and including circuits/algorithms for data synchronization, this volume contains new techniques being used in this field. Highlights of the Second Edition: Development of phase-locked loops from analog to digital and optical, with consistent notation throughout; Expanded coverage of the loop filters used to design second and third order PLLs; Design examples on delay-locked loops used to synchronize circuits on CPUs and ASICS; New material on digital dividers that dominate a frequency synthesizer's noise floor. Techniques to analytically estimate the phase noise of a divider; Presentation of optical phase-locked loops with primers on the optical components and fundamentals of optical mixing; Section on automatic frequency control to provide frequency-locking of the lasers instead of phase-locking; Presentation of charge pumps, counters, and delay-locked loops. The Second Edition includes the essential topics needed by wireless, optics, and the traditional phase-locked loop specialists to design circuits and software algorithms. All of the material has been updated throughout the book.

Author : Christophe P. Basso
Publisher : Artech House
Page : 614 pages
File Size : 49,9 Mb
Release : 2012
Category : Technology & Engineering
ISBN : 9781608075577

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Designing Control Loops for Linear and Switching Power Supplies by Christophe P. Basso Pdf

Loop control is an essential area of electronics engineering that todays professionals need to master. Rather than delving into extensive theory, this practical book focuses on what you really need to know for compensating or stabilizing a given control system. You can turn instantly to practical sections with numerous design examples and ready-made formulas to help you with your projects in the field. You also find coverage of the underpinnings and principles of control loops so you can gain a more complete understanding of the material. This authoritative volume explains how to conduct analysis of control systems and provides extensive details on practical compensators. It helps you measure your system, showing how to verify if a prototype is stable and features enough design margin. Moreover, you learn how to secure high-volume production by bench-verified safety margins.

Author : Kenneth J. Szalai
Publisher : Unknown
Page : 52 pages
File Size : 48,8 Mb
Release : 1967
Category : Feedback control systems
ISBN : UIUC:30112106869867

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The Influence of Response Feedback Loops on the Lateral-directional Dynamics of a Variable-stability Transport Aircraft by Kenneth J. Szalai Pdf

Author : Armin Größlinger
Publisher : Lulu.com
Page : 166 pages
File Size : 44,8 Mb
Release : 2010-01-27
Category : Computers
ISBN : 9781445254210

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The Challenges of Non-linear Parameters and Variables in Automatic Loop Parallelisation by Armin Größlinger Pdf

With the rise of manycore processors, parallelism is becoming a mainstream necessity. Unfortunately, parallel programming is inherently more difficult than sequential programming; therefore, techniques for automatic parallelisation will become indispensable. This doctoral thesis aims at extending the well-known polyhedron model, which promises this automation, beyond some of its current restrictions. Up to now, loop bounds and array subscripts in the modelled codes must be expressions linear in both the variables and the parameters. This restriction is lifted to allow certain polynomial expressions instead of linear ones. With these extensions, more programs can be handled in dependence analysis, in the transformation of the program model and in code generation.

Author : Malte Henkel,Dragi Karevski
Publisher : Springer Science & Business Media
Page : 200 pages
File Size : 42,5 Mb
Release : 2012-04-05
Category : Science
ISBN : 9783642279348

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Conformal Invariance: an Introduction to Loops, Interfaces and Stochastic Loewner Evolution by Malte Henkel,Dragi Karevski Pdf

Conformal invariance has been a spectacularly successful tool in advancing our understanding of the two-dimensional phase transitions found in classical systems at equilibrium. This volume sharpens our picture of the applications of conformal invariance, introducing non-local observables such as loops and interfaces before explaining how they arise in specific physical contexts. It then shows how to use conformal invariance to determine their properties. Moving on to cover key conceptual developments in conformal invariance, the book devotes much of its space to stochastic Loewner evolution (SLE), detailing SLE’s conceptual foundations as well as extensive numerical tests. The chapters then elucidate SLE’s use in geometric phase transitions such as percolation or polymer systems, paying particular attention to surface effects. As clear and accessible as it is authoritative, this publication is as suitable for non-specialist readers and graduate students alike.

Author : Craig A. Kluever
Publisher : John Wiley & Sons
Page : 480 pages
File Size : 49,9 Mb
Release : 2020-06-23
Category : Technology & Engineering
ISBN : 9781119723479

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Dynamic Systems by Craig A. Kluever Pdf

The simulation of complex, integrated engineering systems is a core tool in industry which has been greatly enhanced by the MATLAB® and Simulink® software programs. The second edition of Dynamic Systems: Modeling, Simulation, and Control teaches engineering students how to leverage powerful simulation environments to analyze complex systems. Designed for introductory courses in dynamic systems and control, this textbook emphasizes practical applications through numerous case studies—derived from top-level engineering from the AMSE Journal of Dynamic Systems. Comprehensive yet concise chapters introduce fundamental concepts while demonstrating physical engineering applications. Aligning with current industry practice, the text covers essential topics such as analysis, design, and control of physical engineering systems, often composed of interacting mechanical, electrical, and fluid subsystem components. Major topics include mathematical modeling, system-response analysis, and feedback control systems. A wide variety of end-of-chapter problems—including conceptual problems, MATLAB® problems, and Engineering Application problems—help students understand and perform numerical simulations for integrated systems.

Author : Mohieddine Jelali,Biao Huang
Publisher : Springer Science & Business Media
Page : 409 pages
File Size : 45,6 Mb
Release : 2009-10-13
Category : Technology & Engineering
ISBN : 9781848827752

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Detection and Diagnosis of Stiction in Control Loops by Mohieddine Jelali,Biao Huang Pdf

In the process industries, stiction is the most common performance-limiting valve problem and over the last decade numerous different techniques for overcoming it have been proposed. This book represents a comprehensive presentation of these methods, including their principles, assumptions, strengths and drawbacks. Guidelines and working procedures are provided for the implementation of each method and MATLAB®-based software can be downloaded from www.ualberta.ca/~bhuang/stiction-book enabling readers to apply the methods to their own data. Methods for the limitation of stiction effects are proposed within the general context of: oscillation detection in control loops, stiction detection, diagnosis and stiction quantification and diagnosis of multiple faults. The state-of-the-art algorithms presented in this book are demonstrated and compared in industrial case studies of diverse origin – chemicals, building, mining, pulp and paper, mineral and metal processing.

Author : John L. Stensby
Publisher : CRC Press
Page : 404 pages
File Size : 48,5 Mb
Release : 1997-06-19
Category : Technology & Engineering
ISBN : 0849394716

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Phase-Locked Loops by John L. Stensby Pdf

Applications of phase-locked loops play an increasingly important role in modern electronic systems, and the last 25 years have seen new developments in the underlying theories as well. Phase-Locked Loops presents the latest information on the basic theory and applications of PLLs. Organized in a logical format, it first introduces the subject in a qualitative manner and discusses key applications. Next, it develops basic models for components of a PLL, and these are used to develop a basic PLL model. The text then discusses both linear and nonlinear methods that are used to analyze the basic PLL model. This book includes extensive coverage of the nonlinear behavior of phase-locked loops, an important area of this field and one where exciting new research is being performed. No other book available covers this critical area in such careful detail. Improvements brought about by the advent of the personal computer, especially in the use of numerical results, are integrated into the text. This book also focuses on PLL component technologies used in system implementation.

Author : Basab Bijoy Purkayastha,Kandarpa Kumar Sarma
Publisher : Springer
Page : 244 pages
File Size : 45,6 Mb
Release : 2015-01-29
Category : Technology & Engineering
ISBN : 9788132220411

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A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel by Basab Bijoy Purkayastha,Kandarpa Kumar Sarma Pdf

The book reports two approaches of implementation of the essential components of a Digital Phase Locked Loop based system for dealing with wireless channels showing Nakagami-m fading. It is mostly observed in mobile communication. In the first approach, the structure of a Digital phase locked loop (DPLL) based on Zero Crossing (ZC) algorithm is proposed. In a modified form, the structure of a DPLL based systems for dealing with Nakagami-m fading based on Least Square Polynomial Fitting Filter is proposed, which operates at moderate sampling frequencies. A sixth order Least Square Polynomial Fitting (LSPF) block and Roots Approximator (RA) for better phase-frequency detection has been implemented as a replacement of Phase Frequency Detector (PFD) and Loop Filter (LF) of a traditional DPLL, which has helped to attain optimum performance of DPLL. The results of simulation of the proposed DPLL with Nakagami-m fading and QPSK modulation is discussed in detail which shows that the proposed method provides better performance than existing systems of similar type.

Author : Nikolaos I. Margaris
Publisher : Springer Science & Business Media
Page : 310 pages
File Size : 44,5 Mb
Release : 2004-05-18
Category : Technology & Engineering
ISBN : 3540213392

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Theory of the Non-linear Analog Phase Locked Loop by Nikolaos I. Margaris Pdf

This book develops for the first time a complete and connected nonlinear theory for the analog Phase-Locked Loop (PLL) which clarifies the obscure points of its complex non-linear behaviour. The book suggests new non-linear models for the PLL components and applies the averaging method to analyse PLL. The book presents the physical interpretation of the PLL operation, locates the difficulties presented by its operation and suggests solutions to overcome these problems. Finally it provides closed form expressions for all the important measures of the PLL and proposes new design criteria.

Author : Ronald A. Hess
Publisher : Unknown
Page : 62 pages
File Size : 49,6 Mb
Release : 1977
Category : Electronic
ISBN : NASA:31769000538887

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A Dual-loop Model of the Human Controller in Single-axis Tracking Tasks by Ronald A. Hess Pdf

Author : Boris J. Lurie,Paul Enright
Publisher : CRC Press
Page : 574 pages
File Size : 42,9 Mb
Release : 2019-08-02
Category : Science
ISBN : 9781351011846

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Classical Feedback Control with Nonlinear Multi-Loop Systems by Boris J. Lurie,Paul Enright Pdf

Classical Feedback Control with Nonlinear Multi-Loop Systems describes the design of high-performance feedback control systems, emphasizing the frequency-domain approach widely used in practical engineering. It presents design methods for high-order nonlinear single- and multi-loop controllers with efficient analog and digital implementations. Bode integrals are employed to estimate the available system performance and to determine the ideal frequency responses that maximize the disturbance rejection and feedback bandwidth. Nonlinear dynamic compensators provide global stability and improve transient responses. This book serves as a unique text for an advanced course in control system engineering, and as a valuable reference for practicing engineers competing in today’s industrial environment.

Author : Tertulien Ndjountche
Publisher : CRC Press
Page : 507 pages
File Size : 48,7 Mb
Release : 2018-09-06
Category : Technology & Engineering
ISBN : 9780429939051

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Data Converters, Phase-Locked Loops, and Their Applications by Tertulien Ndjountche Pdf

With a focus on designing and verifying CMOS analog integrated circuits, the book reviews design techniques for mixed-signal building blocks, such as Nyquist and oversampling data converters, and circuits for signal generation, synthesis, and recovery. The text details all aspects, from specifications to the final circuit, of the design of digital-to-analog converters, analog-to-digital converters, phase-locked loops, delay-locked loops, high-speed input/output link transceivers, and class D amplifiers. Special emphasis is put on calibration methods that can be used to compensate circuit errors due to device mismatches and semiconductor process variations. Gives an overview of data converters, phase- and delay-locked loop architectures, highlighting basic operation and design trade-offs. Focus on circuit analysis methods useful to meet requirements for a high-speed and power-efficient operation. Outlines design challenges of analog integrated circuits using state-of-the-art CMOS processes. Presents design methodologies to optimize circuit performance on both transistor and architectural levels. Includes open-ended circuit design case studies.