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Markets for high-speed A/D converters are significant in size and many are growing rapidly. Commercial users include wireless mobile communication systems, airline radar, air traffic control towers, ship communications, and wireless networks. Industrial uses include medical imaging systems and process control systems. Government is another significant user: military radar, global military radio networks, unmanned aerial vehicles, and intelligence gathering systems.
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When VXS, a proposal for standardizing gigabit serial switched fabrics shook the embedded community in 2002 as part of the VMEbus renaissance, XMC, a natural extension of that technology to PMC modules was inevitable. VXS is the popular name for a switched serial backplane fabric implementation for VMEbus. The VXS specification is fabric-transparent, in that there are subspecifications, one for each of fabrics: Infiniband, Serial RapidIO, Gigabit Ethernet, PCI Express.
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Software Defined Radio (SDR) has revolutionized electronic systems for a variety of applications including communications, data acquisition and signal processing. The inner workings of the SDR will be explored with an in-depth description of the internal structure and the devices used. Finally, some actual board- and system-level implementations and available off-the-shelf SDR products for embedded systems will be described.
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The inner workings of the digital receiver are explored and actual digital receiver systems and commercially available products are described.
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This handbook reviews the development of gigabit switched serial fabrics to enhance the VMEbus and PMC mezzanines; the role of FPGAs to implement this technology; and finally, how some of the latest VXS and XMC products can be used in high-speed data acquisition, recording and software radio systems.
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