Type de publics : Spécialiste

Noise in High Frequency Circuits and Oscillators

Noise in High-Frequency Circuits and Oscillators has its origins in a university course taught by the authors. As a result, it is thoroughly classroom-tested and carefully structured to facilitate learning. Readers are given a solid foundation in the basics that allows them to proceed to more advanced and sophisticated themes such as computer-aided noise simulation of high-frequency circuits.

Following a discussion of mathematical and system-oriented fundamentals, the book covers:
* Noise of linear one- and two-ports
* Measurement of noise parameters
* Noise of diodes and transistors
* Parametric circuits
* Noise in nonlinear circuits
* Noise in oscillators
* Quantization noise

Each chapter contains a set of numerical and analytical problems that enable readers to apply their newfound knowledge to real-world problems. Solutions are provided in the appendices.

With their many years of classroom experience, the authors have designed a book that is ideal for graduate students in engineering and physics. It also addresses key issues and points to solutions for engineers working in the burgeoning satellite and wireless communications industries.

Frequency Standards

After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards from atomic clocks, to frequency stabilised lasers. The whole is rounded of with a discussion of topical applications in engineering, telecommunications, and metrology.

The Measurement of Time : Time, Frequency and Atomic Clocks

The precision of atomic clocks and the atomic time scale are considered in the context of fundamental physical research, with relation to general relativity and applications such as the Global Positioning System. The authors also discuss International Atomic Time and its relationship to Coordinated Universal Time and the time scales used in astronomy.

Provides a unique insight into the measurement of time and its applications
Covers the underlying physics at the most precise metrological level

Discusses the accuracy and uses of oscillators and atomic clocks, as well as applications such as the Global Positioning System

Temps-fréquence

L’ouvrage contient à la fois une discussion des problèmes posés par le principe d’une description mixte temps-fréquence et une construction détaillée des principales classes de solutions admissibles (Fourier à court terme, ondelettes, Wigner-Ville, classe de Cohen, distributions affines…). Il aborde aussi de nombreuses questions d’interprétation liées aux représentations obtenues et propose la reformulation, en termes purement conjoints, de plusieurs problèmes importants de théorie du signal.

The Quantum Physics of Atomic Frequency Standards

The first volume begins with a quantum mechanics treatment of the interaction of static fields and electromagnetic radiation with atoms and molecules. Each of the important phenomena – noise, relaxation, broadening and frequency shifts – is treated in detail and optical pumping and population inversion are explained. With all the background material now in place the major part of these volumes is devoted to a theoretical analysis of the operation of the numerous atomic frequency standards that are either in use, are being studied or have been proposed.

* Caesium atomic beam frequency standards

* Hydrogen maser

* Rubidium frequency standards

* Mercury ion trap

* Frequency stabilized lasers

* Impact of atomic frequency standards on navigation and communication systems, in industry, in new technology and on fundamental research.