Time And Frequency Theory And Fundamentals
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Author | : Byron Emerson Blair |
Publisher | : |
Total Pages | : 468 |
Release | : 1974 |
Genre | : Atomic frequency standards |
ISBN | : |
The document is a tutorial Monograph describing various aspects of time and frequency (T/F). Included are chapters relating to elemental concepts of precise time and frequency; basic principles of quartz oscillators and atomic frequency standards; historical review, recent progress, and current status of atomic frequency standards; promising areas for developing future primary frequency standards; relevance of frequency standards to other areas of metrology including a unified standard concept; statistics of T/F data analysis coupled with the theory and construction of the NBS atomic time scale; an overview of T/F dissemination techniques; and the standards of T/F in the USA. The Monograph addresses both the specialist in the field as well as those desiring basic information about time and frequency. The authors trace the development and scope of T/F technology, its improvement over periods of decades, its status today, and its possible use, applications, and development in days to come.
Author | : Byron E. Blair |
Publisher | : |
Total Pages | : 459 |
Release | : 1974 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 459 |
Release | : 1974 |
Genre | : |
ISBN | : |
Author | : B.E. Blair |
Publisher | : |
Total Pages | : 0 |
Release | : |
Genre | : |
ISBN | : |
Author | : Stati Uniti d'America. National bureau of standards |
Publisher | : |
Total Pages | : 0 |
Release | : |
Genre | : |
ISBN | : |
Author | : Karlheinz Gröchenig |
Publisher | : Springer Science & Business Media |
Total Pages | : 367 |
Release | : 2013-12-01 |
Genre | : Technology & Engineering |
ISBN | : 1461200032 |
Time-frequency analysis is a modern branch of harmonic analysis. It com prises all those parts of mathematics and its applications that use the struc ture of translations and modulations (or time-frequency shifts) for the anal ysis of functions and operators. Time-frequency analysis is a form of local Fourier analysis that treats time and frequency simultaneously and sym metrically. My goal is a systematic exposition of the foundations of time-frequency analysis, whence the title of the book. The topics range from the elemen tary theory of the short-time Fourier transform and classical results about the Wigner distribution via the recent theory of Gabor frames to quantita tive methods in time-frequency analysis and the theory of pseudodifferential operators. This book is motivated by applications in signal analysis and quantum mechanics, but it is not about these applications. The main ori entation is toward the detailed mathematical investigation of the rich and elegant structures underlying time-frequency analysis. Time-frequency analysis originates in the early development of quantum mechanics by H. Weyl, E. Wigner, and J. von Neumann around 1930, and in the theoretical foundation of information theory and signal analysis by D.
Author | : A. S. Risley |
Publisher | : |
Total Pages | : 84 |
Release | : 1976 |
Genre | : Atomic frequency standards |
ISBN | : |
Author | : Fritz Riehle |
Publisher | : John Wiley & Sons |
Total Pages | : 540 |
Release | : 2006-03-06 |
Genre | : Science |
ISBN | : 3527605959 |
Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. 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.
Author | : |
Publisher | : |
Total Pages | : 954 |
Release | : 1976 |
Genre | : Weights and measures |
ISBN | : |
Author | : A.A. Lucas |
Publisher | : Springer Science & Business Media |
Total Pages | : 647 |
Release | : 2013-12-01 |
Genre | : Science |
ISBN | : 1489921451 |
The object of this NATO Advanced Study Institute was to pre sent a tutorial 'introduction both to the basic physics of recent spectacular advances achieved in the field of metrology and to the determination of fundamental physical constants. When humans began to qualify their description of natural phenomena, metrology, the science of measurement, developed along side geometry and mathematics. However, flam antiquity to modern times, the role of metrology was mostly restricted to the need of commercial, social or scientific transactions of local or at most national scope. Beginning with the Renaissance, and particularly in western Europe during the last century, metrology rapidly developed an international character as a result of growing needs for more accurate measurements and common standards in the emerging indus trial society. Although the concerns of metrology are deeply rooted to fundamental sciences, it was, until recently, perceived by much of the scientific community as mostly custodial in character.