Summary
The definitive engineer's guide to designing and building software-based radios. - The first systematic guide to software radio design and implementation
- Multirate DSP, RF front-ends, direct digital synthesis of modulated waveforms, A/D and D/A conversion, and more
- Enhancing performance through smart antennas and other adaptive array algorithms
- Techniques for building more flexible, extensible software
Radios, once implemented purely in hardware, are increasingly built using programmable digital signal processing (DSP) devices that enhance device flexibility, simplify manufacture, and reduce costs. However, many engineers are unfamiliar with the latest techniques for building software radios for wireless systems and devices. This book fills the gap, introduces the key concepts of software radio design, and covers every issue and technique engineers must understand to successfully utilize DSP in their radio systems and subsystems. Coverage includes: - Central role of multirate DSP in software radio design
- Constructing RF front-ends: utilizing digital processing to overcome key problems in RF design
- Direct digital synthesis of modulated waveforms
- A/D and D/A converters and conversion processes: key tradeoffs among resolution, sample rate, and dynamic range
- Enhancing performance through smart antennas and other adaptive array algorithms
- Practical techniques for choosing among DSP microprocessors, FPGAs, and ASICs
- A systematic, object-oriented approach to creating flexible software
The book concludes with case studies drawn from the advanced work of the SDR Forum, the leading consortium of companies, universities, and research organizations promoting software radio development. Communications Engineering & Emerging Technologies Series
Theodore S. Rappaport, Series Editor
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Table of Contents
Preface.
Acknowledgments.
1. Introduction to Software Radio Concepts.
The Need for Software Radios. What Is a Software Radio? Characteristics and Benefits of a Software Radio. Design Principles of a Software Radio. Questions.
2. Radio Frequency Implementation Issues.
The Purpose of the RF Front-End. Dynamic Range: The Principal Challenge of Receiver Design. RF Receiver Front-End Topologies. Enhanced Flexibility of the RF Chain with Software Radios. Importance of the Components to Overall Performance. Transmitter Architectures and Their Issues. Noise and Distortion in the RF Chain. ADC and DAC Distortion.
3. Multirate Signal Processing.
Introduction. Sample Rate Conversion Principles. Polyshase Filters. Digital Filter Banks. Timing Recovery in Digital Receivers Using Multirate Digital Filters.
4. Digital Generation of Signals.
Introduction. Comparison of Direct Digital Synthesis with Analog Signal Synthesis. Approaches to Direct Digital Synthesis. Analysis of Spurious Signals. Spurious Components due to Periodic Jitter. Bandpass Signal Generation. Performance of Direct Digital Synthesis Systems. Hybrid DDS-PLL Systems. Applications of direct Digital Synthesis. Generation of Random Sequences. ROM Compression Techniques.
5. Analog to Digital and Digital to Analog Conversion.
6. Smart Antennas.
7. Digital Hardware Choices.
8. Object-Oriented Representation of Radios and Network Resources.
9. Case Studies In Software Radio Design.
Appendix A. Rf Engineering Books And Trade Publications.
Appendix B. The Coordinate Rotation Digital Computer Algorithm.
References.
Glossary of Acronyms.
About the Author.
About the Chapter Co-Authors.
Index.
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