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Informationen zum Autor Venceslav F. Kroupa has been affiliated with the Institute of Radio Engineering and Electronics of the Academy of Sciences in the Czech Republic since 1955. He has previously written four books and has published over 100 papers on the subjects of standard time and frequency; frequency stability and noise; frequency synthesis; and precise frequency measurement. Dr. Kroupa holds 15 patents and has received awards from the Czechoslovak Academy of Sciences in 1969 and 1974. He is a member of IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society. Klappentext Electrical Engineering Direct Digital Frequency Synthesizers With the advent of integrated circuits, digital systems have become widely used in modern electronic devices, including communications and measurement equipment. Direct Digital Frequency Synthesizers (DDS or DDFS) are used in communications as transmitter exciters, phase modulators, and local oscillators in receivers. The advantages are small size, superior frequency stability (the same as that of the driving clock oscillator), and short switching times. The difficulties are lower RF output frequencies and rather large spurious signals. Compiled for engineers dealing with systems and practical applications, Direct Digital Frequency Synthesizers- a collection of 40 important reprinted papers and nine new contributions- presents a comprehensive introduction to DDS properties and a clear understanding of actual devices. The information in this volume can lead to easier computer simulations and improved designs. Featured topics include: Discussion of principles and state-of-the-art, wide-range DDSInvestigation of spurious signals in DDSCombination of DDS with phase-lock loopsExamination of phase and background noise in DDSIntroduction to digital-to-analog conversionAnalysis of mathematics of quasiperiodic omission of pulsesDirect Digital Frequency Synthesizers can also serve as a textbook for students seeking essential background theory. Zusammenfassung "With the advent of integrated circuits (IC)! digital systems have become widely used in modern electronic devices! including communications and measurement equipment. Direct Digital Frequency Synthesizers (DDS) are used in communications as transmitter exciters and local oscillators in receivers. Inhaltsverzeichnis Preface. Part I Introduction and Tutorial. Synthesis Technique ( V. F. Kroupa ). Part II Direct Digital Single-Frequency Synthesizers. A Frequency Synthesizer for 10/27T kHz (G. W. Small, IEEE Transactions on Instrumentation and Measurement, March 1973). Approximating Frequency Synthesizers (V. F. Kroupa, IEEE Transactions on Instrumentation and Measurement, December 1974). Part III Wide-Range Direct Digital Frequency Synthesizers. A Digital Frequency Synthesizer (J. Tierney, C. M. Radre, and B. Gold, IEEE Transactions on Audio and Electroacoustics, March 1971). CMOS/SOS Frequency Synthesizer LSI Circuit for Spread Spectrum Communications (D. A. Sunderland, R. A. Strauch, S. S. Wharfield, H. T. Peterson, and C. R. Cole, IEEE Journal of Solid-State Circuits, August 1984). A High-Speed Direct Frequency Synthesizer (P. H. Saul and D. G. Taylor, IEEE Journal of Solid-State Circuits, February 1990). Single Chip 500 MHz Function Generator (P. H. Saul, W. Barber, D. G. Taylor, and T. Ward, IEE Proceedings-G, April 1991). Low-Latency, High-Speed Numerically Controlled Oscillator Using Progression-of-States Technique (M. Thompson, IEEE Journal of Solid-State Circuits, January 1992). Part IV Spurious Signals in Direct Digital Frequency Synthesizers. Spectra of Pulse Rate Frequency Synthesizers (V. F. Kroupa, Proceedings of the IEEE, December 1979). Noise Spectra of Digital Sine-Generators Using th...
