SOFTWARE DEFINED RADIO FOR AUDIO SIGNAL PROCESSING IN PROJECT BASED LEARNING
Keywords:SDR, Signal Processing, Project Based Learning, GNU Radio
In communication and signal processing course there are some challenges in explaining the basic theory of signal and how to process the signal as well. Educational tool to demonstrate how the system works is important and more attractive to improve the understanding of student. Software Defined Radio (SDR) brings the concept of software-based processing. This paper implements the using of SDR as the innovative teaching method to demonstrate the fundamental concept in signal processing course. Students build the audio signal processing projects on SDR platform using GNU Radio. Three interesting projects including the adjustment of sampling rate, DSB-AM modulation, and audio processing for gender identification are simulated using GNU Radio software. This Project Based Learning shows the positive result of the implementation of SDR in raising the student interest and motivation. Furthermore this study opens wide application of SDR based technique especially for education.
Sharlene Katz, James Flynn. Using Software Defined Radio (SDR) To Demonstrate Concepts in
Communications and Signal Processing Courses. Proceedings of the 2009 ASEE Annual
Sharlene Katz, James Flynn. Using Software Defined Radio in Multidiciplinary Senior Design
Projects at California State University, Northridge. Proceedings of the SDR 2009 Technical
Conference and Product Exposition. 2009.
Gü zelgö z, S, Tampa, Arslan, H. Modeling, simulation, testing, and measurements of wireless
communication systems: A laboratory based approach. Wireless and Microwave Technology
Conference WAMICON, 2009, 1-5.
Reis, A.L.G., Selva, A.F.B., Lenzi, K.G., Barbin, S.E. Software defined radio on digital
communications: A new teaching tool. Wireless and Microwave Technology Conference
WAMICON. 2012, 1-8.
Petrova, M. Achtzehn, A., Mä hö nen, P. System-oriented communications engineering
curriculum: teaching design concepts with SDR platforms. Communications Magazine IEEE,
Volume 52 , Issue: 5. 2014. 202 – 209.
Bilén, S.G. Wyglinski, A.M. Anderson, C.R. Cooklev, T. Software-Defined Radio: A New
Paradigm for Integrated Curriculum Delivery. Communications Magazine IEEE , Volume 52,
Issue: 5. 2014. 184 – 193.
Luiz Garcia Reis, A., Barros, A.F., Gusso Lenzi, K., Pedroso Meloni, L.G. Introduction to the
Software-defined Radio Approach. Latin America Transactions IEEE, Volume 10, Issue 1. 2012.