Jones Seminar: Everyday Signal Processing in GNU Radio

Thomas Rondeau, Maintainer and Lead Developer, GNU Radio Project

Friday, October 23, 2015, 3:30–4:30pm

Spanos Auditorium, Cummings Hall

The need for signal processing is nearly everywhere these days. And with the pluralizing effect of the mobile phone industry and the "Internet of Things," we're seeing more radio devices out there and more growth in types of radio signals. Each of these standards has any number of signal processing parts that interconnect to move data between the antenna and the network stack. The wireless industry as a whole is trying to improve communications by building more reliable systems, creating more energy efficient radios, and dealing with increasingly complex interference problems. The software radio platform GNU Radio is a framework that allows us to connect and interact with wireless systems as well as many other types of signals. In this talk, we will explore some of these signals and interference problems and how an open, real-time signal processing platform provides us with new insights. We need to understand radios both in terms of improving system development, but also analyzing and understanding current limitations and weaknesses. The hands-on approach to working with all kinds of signals helps us learn more than we ever have about the nature of communications, signal propagation, interference, and potential applications. As part of this talk, I will both use and explain our current efforts to use GNU Radio on Android. The combination of inexpensive but flexible and powerful radio hardware with low-cost but computationally capable Android devices is enabling new insights into the possibilities for signal processing in all sorts of new form factors.

About the Speaker

Tom Rondeau is the maintainer and lead developer of the GNU Radio project and a consultant on signal processing and wireless communications. Tom is active in many conferences and workshops around the world to help further research and technology in these areas, and he has consulted with many companies and government organization on new techniques in wireless signal processing. He is also a visiting researcher with the University of Pennsylvania and has published widely in the fields of wireless communications, software radio, and cognitive radio. He holds a PhD in electrical engineering from Virginia Tech and won the 2007 Outstanding Dissertation Award in math, science, and engineering from the Council of Graduate Schools for his work in artificial intelligence in wireless communications.

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