Frequency Stability

Frequency Stability

Author: Venceslav F. Kroupa

Publisher: John Wiley & Sons

Published: 2012-09-19

Total Pages: 330

ISBN-13: 1118159128

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An in-depth look at the theory and applications of frequency stability An understanding of the acquisition of stable frequency is essential for anyone who needs to solve noise problems in wireless communications. This book offers a thorough introduction to the principles and applications of frequency stability, arming practicing engineers with the tools they need to minimize noise in systems and devices that affect everyday communications for millions of people. With an emphasis on both practical and scientific points of view, Frequency Stability: Introduction and Applications examines frequency and time fluctuations in resonators, as well as the stability of both standard and practical microwave oscillators. It explains noise properties of building circuit blocks, introducing time domain properties and how they relate to noise spectral densities. Including a special chapter devoted to the design and properties of phase locked loops—a crucial topic for frequency synthesizers—the book also: Examines in detail L/F noise, showing how power losses in the propagation material extend over a long period of time Covers sapphire, optoelectronics, MW, and ring oscillators with the discussion of noise in delay-line oscillators with lasers Offers an extended treatment of phase noise in semiconductors and amplifiers based on Van der Ziel investigations Emphasizes the modified Allan variance in the time domain, including exact computations Outlines the relationship between resonator frequency and output phase noises via the feedback theory Featuring numerous tables with actual data, Frequency Stability: Introduction and Applications is an invaluable guide for engineers wishing to rein in acoustic and electromagnetic interference in modern communications.


Fundamentals and Applications of Ultrasonic Waves

Fundamentals and Applications of Ultrasonic Waves

Author: J. David N. Cheeke

Publisher: CRC Press

Published: 2017-12-19

Total Pages: 504

ISBN-13: 143985498X

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Written at an intermediate level in a way that is easy to understand, Fundamentals and Applications of Ultrasonic Waves, Second Edition provides an up-to-date exposition of ultrasonics and some of its main applications. Designed specifically for newcomers to the field, this fully updated second edition emphasizes underlying physical concepts over mathematics. The first half covers the fundamentals of ultrasonic waves for isotropic media. Starting with bulk liquid and solid media, discussion extends to surface and plate effects, at which point the author introduces new modes such as Rayleigh and Lamb waves. This focus on only isotropic media simplifies the usually complex mathematics involved, enabling a clearer understanding of the underlying physics to avoid the complicated tensorial description characteristic of crystalline media. The second part of the book addresses a broad spectrum of industrial and research applications, including quartz crystal resonators, surface acoustic wave devices, MEMS and microacoustics, and acoustic sensors. It also provides a broad discussion on the use of ultrasonics for non-destructive evaluation. The author concentrates on the developing area of microacoustics, including exciting new work on the use of probe microscopy techniques in nanotechnology. Focusing on the physics of acoustic waves, as well as their propagation, technology, and applications, this book addresses viscoelasticity, as well as new concepts in acoustic microscopy. It updates coverage of ultrasonics in nature and developments in sonoluminescence, and it also compares new technologies, including use of atomic force acoustic microscopy and lasers. Highlighting both direct and indirect applications for readers working in neighboring disciplines, the author presents particularly important sections on the use of microacoustics and acoustic nanoprobes in next-generation devices and instruments.


Radiometric Tracking Techniques for Deep-Space Navigation

Radiometric Tracking Techniques for Deep-Space Navigation

Author: Catherine L. Thornton

Publisher: John Wiley & Sons

Published: 2003-02-05

Total Pages: 99

ISBN-13: 0471445347

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Radiometric Tracking Techniques for Deep-Space Navigation focuses on a broad array of technologies and concepts developed over the last four decades to support radio navigation on interplanetary spacecraft. In addition to an overview of Earth-based radio navigation techniques, the book includes a simplified conceptual presentation of each radiometric measurement type, its information content, and the expected measeurement accuracy. The methods described for both aquiring and calibrating radiometric measurements also provide a robust system to support guidance and navigation for future robotic space exploration.


Reconfigurable Manufacturing Systems and Transformable Factories

Reconfigurable Manufacturing Systems and Transformable Factories

Author: Anatoli I. Dashchenko

Publisher: Springer Science & Business Media

Published: 2007-06-08

Total Pages: 763

ISBN-13: 3540293973

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Dear reader! In your hand you have the second book from the series “XXI Century Techno- gies. ” The first book under the title “Manufacturing Technologies for Machines of the Future” was published by “Springer” in 2003. This book is aimed at solving one of the basic problems in the development of modern machine-building – working out of technologies and manufacturing equipment which would promote the continuous development and improvement of the final product design, rapidly “adaptable” to the requirements of the market as for the quantity, quality, and variety of products manufactured with the lowest cost and minimum time and labor of the product process. In this book the problems of theory and practice of development in the reconfigurable manufacturing systems and transformable factories for various machine-building branches with a focus on automotive industry are discussed. The problems concerning the development of a new class of production systems which in comparison to the flexible manufact- ing systems are composed of a far less quantity of machine-tools (reduced cost of production) are discussed. In comparison to the conventional automated lines (dedicated systems) they make it possible to rapidly transform the equipment for new products manufacturing. The book has some advantages concerning the art of scientific ideas and the presentation of developments.


Radio Frequency Integrated Circuits and Systems

Radio Frequency Integrated Circuits and Systems

Author: Hooman Darabi

Publisher: Cambridge University Press

Published: 2020-03-12

Total Pages: 784

ISBN-13: 1108173586

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This updated and expanded new edition equips students with a thorough understanding of the state-of-the-art in radio frequency (RF) design and the practical knowledge and skills needed in industry. Introductory and advanced topics are covered in-depth, with clear step-by-step explanations, including core topics such as RF components, signals and systems, two-ports, noise, distortion, low-noise amplifiers, power amplifiers, and transceiver architectures. New material has been added on wave propagation, skin effect, antennas, mixers and oscillators, and digital PAs and transmitters. Two new chapters detail the analysis and design of RF and IF filters (including SAW and FBAR duplexers and N-path filters), phase-locked loops, frequency synthesizers, digital PLLs, and frequency dividers. Theory is linked to practice through real-world applications, practical design examples, and exploration of the pros and cons of various topologies. Over 250 homework problems are included, with solutions and lecture slides for instructors available online. With its uniquely practical and intuitive approach, this is an essential text for graduate courses on RFICs and a useful reference for practicing engineers.


Streamlining Digital Signal Processing

Streamlining Digital Signal Processing

Author: Richard G. Lyons

Publisher: John Wiley & Sons

Published: 2012-05-29

Total Pages: 502

ISBN-13: 1118316932

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This book presents recent advances in DSP to simplify, or increase the computational speed of, common signal processing operations. The topics describe clever DSP tricks of the trade not covered in conventional DSP textbooks. This material is practical, real-world, DSP tips and tricks as opposed to the traditional highly-specialized, math-intensive, research subjects directed at industry researchers and university professors. This book goes well beyond the standard DSP fundamentals textbook and presents new, but tried-and-true, clever implementations of digital filter design, spectrum analysis, signal generation, high-speed function approximation, and various other DSP functions.


MEMS/NEMS Sensors

MEMS/NEMS Sensors

Author: Goutam Koley

Publisher: MDPI

Published: 2019-11-20

Total Pages: 242

ISBN-13: 3039216341

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Due to the ever-expanding applications of micro/nano-electromechanical systems (NEMS/MEMS) as sensors and actuators, interest in their development has rapidly expanded over the past decade. Encompassing various excitation and readout schemes, the MEMS/NEMS devices transduce physical parameter changes, such as temperature, mass or stress, caused by changes in desired measurands, to electrical signals that can be further processed. Some common examples of NEMS/MEMS sensors include pressure sensors, accelerometers, magnetic field sensors, microphones, radiation sensors, and particulate matter sensors.


Multi-Antenna Synthetic Aperture Radar

Multi-Antenna Synthetic Aperture Radar

Author: Wen-Qin Wang

Publisher: CRC Press

Published: 2017-07-12

Total Pages: 468

ISBN-13: 1466510528

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Synthetic aperture radar (SAR) is a well-known remote sensing technique, but conventional single-antenna SAR is inherently limited by the minimum antenna area constraint. Although there are still technical issues to overcome, multi-antenna SAR offers many benefits, from improved system gain to increased degrees-of-freedom and system flexibility. Multi-Antenna Synthetic Aperture Radar explores the potential and challenges of using multi-antenna SAR in microwave remote sensing applications. These applications include high-resolution imaging, wide-swath remote sensing, ground moving target indication, and 3-D imaging. The book pays particular attention to the signal processing aspects of various multi-antenna SAR from a top-level system perspective. Explore Recent Extensions of Synthetic Aperture Radar Systems The backbone of the book is a series of innovative microwave remote sensing approaches developed by the author. Centered around multi-antenna SAR imaging, these approaches address specific challenges and potential problems in future microwave remote sensing. Chapters examine single-input multiple-output (SIMO) multi-antenna SAR, including azimuth and elevation multi-antenna SAR, and multiple-input multiple-output (MIMO) SAR. The book details the corresponding system scheme, signal models, time/phase/spatial synchronization methods, and high-precision imaging algorithms. It also investigates their potential applications. Introductory Tutorials and Novel Approaches in Multi-Antenna SAR Imaging Rigorous and self-contained, this is a unique reference for researchers and industry professionals working with microwave remote sensing, SAR imaging, and radar signal processing. In addition to novel approaches, the book also presents tutorials that serve as an introduction to multi-antenna SAR imaging for those who are new to the field.