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Community Driven Digital Signal Processing Laboratories in Connexions

Richard Baraniuk,◦ Hyeokho Choi,◦ Douglas L. Jones, Lee Potter† ∗

Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign ◦ Rice University, † Ohio State University

Abstract

The conventional textbook is largely inadequate for digital signal processing (DSP) laboratory education due to inherent factors such as a small and fragmented market and rapid hardware obso- lescence. Freely available open-content materials that enable and promote both local customization and further development by a community of educators offers a fresh approach to lab text develop- ment that can surmount these barriers. In this paper, we overview a joint effort organized by the Connexions Project to develop a large pool of DSP lab modules sufficient to serve as the complete, stand-alone text for several types of DSP lab courses.

1 Introduction

Digital signal processing (DSP) laboratory courses are difficult to serve with conventional commer- cial textbooks. First, the market is relatively small, thus precluding a major investment by authors and publishers in the hope of a substantial commercial success. Second, the market is fragmented; different lab equipment or DSP microprocessors are used at each educational institution, and the course level, structure, and content may differ greatly, thus necessitating different textbooks or versions to serve an already small market. Essential materials generally include tutorials on using the particular lab setup and equipment and code examples or wrappers that are site-specific. Third, DSP hardware changes quite rapidly while the development and publication of a printed textbook takes quite some time, thus making a text nearly obsolete at the time of publication. For these rea- sons, conventional commercial textbooks and publishers are unlikely to ever serve DSP lab courses ∗ Web: cnx.rice.edu; Email: {richb,choi}@rice.edu, dl-jones@uiuc.edu, potter@ee.eng.ohio-state.edu

Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition Copyright c 2004, American Society for Engineering Education

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Baraniuk, R., & Wagner, R., & Frantz, P., & Potter, L., & Choi, H., & Jones, D. (2004, June), Community Driven Digital Signal Processing Laboratories In Connexions Paper presented at 2004 Annual Conference, Salt Lake City, Utah. 10.18260/1-2--13533