Linux 2005

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Bdale Garbee - HP / Debian

Software Defined Radio and the GNU Radio Project

Software Defined Radio is the notion of replacing as much of the signal processing hardware in modern communications systems as possible with software. While the idea is simple, building working systems requires specialized knowledge in computing and communications.

The GNU Radio package separates the heavy-lifting of building signal processing blocks from effort at a higher level of abstraction to connect those blocks in meaningful ways. Understanding of communication systems design is still required, but GNU Radio is making it possible for a broader range of participants to contribute to the development of SDR technology.

The politics of SDR, in particular the challenges posed to and by spectrum regulatory bodies, makes SDR something more people should try to understand. This talk will provide a gentle introduction to SDR concepts and the GNU Radio implementation, and with any luck, a few interesting demonstrations of the technology!