Digital Synthesizers and Transmitters for Software Radio, Jouko Vankka

Автор: Paro Filho
Название: Charge-based CMOS Digital RF Transmitters
ISBN: 3319457861 ISBN-13(EAN): 9783319457864
Издательство: Springer
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Цена: 15372.00 р.
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Описание: This book introduces a completely novel architecture that can relax the trade-off existing today between noise, power and area consumption in a very suitable solution for advanced wireless communication systems. Through the combination of charge-domain operation with incremental signaling, this architecture gives the best of both worlds, providing the reduced area and high portability of digital-intensive architectures with an improved out-of-band noise performance given by intrinsic noise filtering capabilities. Readers will be enabled to design higher performance radio front-ends that consume less power and area, especially with respect to the transmitter and power amplifier designs, considered by many the “battery killers” on most mobile devices.

Автор: Jouko Vankka; Kari A.I. Halonen
Название: Direct Digital Synthesizers
ISBN: 1441948953 ISBN-13(EAN): 9781441948953
Издательство: Springer
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Цена: 26120.00 р.
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Описание: A major advantage of a direct digital synthesizer (DDS) is that its output frequency, phase and amplitude can be precisely and rapidly manipulated under digital processor control. Other inherent DDS attributes include the ability to tune with extremely fine frequency and phase resolution, and to rapidly hop' between frequencies. These combined characteristics have made the technology popular in military radar and communications systems. In fact, DDS technology was previously applied almost exclusively to high-end and military applications: it was costly, power-hungry, difficult to implement, and required a discrete high speed D/A converter. Due to improved integrated circuit (IC) technologies, they now present a viable alternative to analog-based phase-locked loop (PLL) technology for generating agile analog output frequency in consumer synthesizer applications.
It is easy to include different modulation capabilities in the DDS by using digital signal processing (DSP) methods, because the signal is in digital form. By programming the DDS, adaptive channel bandwidths, modulation formats, frequency hopping and data rates are easily achieved. The flexibility of the DDS makes it ideal for signal generator for software radio. The digital circuits used to implement signal-processing functions do not suffer the effects of thermal drift, aging and component variations associated with their analog counterparts. The implementation of digital functional blocks makes it possible to achieve a high degree of system integration. Recent advances in IC fabrication technology, particularly CMOS, coupled with advanced DSP algorithms and architectures are providing possible single-chip DDS solutions to complex communication and signal processing subsystems as modulators, demodulators, local oscillators, programmable clock generators, and chirp generators. The DDS addresses a variety of applications, including cable modems, measurement equipments, arbitrary waveform generators, cellular base stations and wireless local loop base stations.
Direct Digital Synthesizers was written to find possible applications for radio communication systems. It will have appeal for wireless and wireline communication engineers, teachers and students.

Автор: Vadim Manassewitsch
Название: Frequency Synthesizers: Theory and Design, 3rd Edition
ISBN: 0471772631 ISBN-13(EAN): 9780471772637
Издательство: Wiley
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Цена: 14090.00 р.
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Описание: The landmark text on frequency synthesizers-now in paperback Frequency Synthesizers: Theory and Design, Third Edition is the newest edition of Vadim Manassewitsch`s definitive treatment of the subject.