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Session 1620

Interactive Signals and Systems Laboratories Using Notebooks

Maurice F. Aburdene, Richard J. Kozick, Jaskeerat S. Baweja Bucknell University

Abstract

This paper presents three interactive signal processing laboratories that use Matlab programs linked to a Microsoft Word document (a “notebook”). The active filter analysis and design, convolution and concert halls, and spectral analysis labs are designed for third-year students in a signals and systems course. These labs engage the students in the learning process by providing them with the opportunity to experiment and ask “what if” questions with a minimum of additional computational and documentation effort.

1. Introduction

We describe a set of interactive laboratories for a junior-level signals and systems course that uses Matlab linked to a Microsoft Word document (notebook or m-book). Notebooks facilitate the creation of interactive documents that combine text, executable Matlab code, spreadsheets for recording experimental data, and plots of simulated and experimental results. Students can use notebooks as a tool to document their laboratory activities and to prepare laboratory reports. A more detailed list of the advantages as well as evaluation of using notebooks in class are described in Shiavi1,2.

Here we present notebooks for signals and systems laboratory experiments for:

(a) Active filter analysis and design (b) Convolution: computation and application to concert halls (c) Spectral analysis with the discrete Fourier transform (DFT )and fast Fourier transform (FFT)

Advances in signal processing methods are fueling an explosion in many areas of electrical engineering, including multimedia, the internet, communications, and consumer electronics. These notebooks motivate the students to experiment with various cases in more detail to gain a better understanding of the fundamental ideas with immediate feedback.

2. Active filter analysis and design

The lab assignment itself is distributed to students as a notebook. It contains frequency response specifications for three active filters that the students are to design, build, and test. The notebook includes a sample Matlab program to plot the analytical frequency response of a circuit, which the students use to verify that their circuit design meets the specifications. In addition, this

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Aburdene, M. F., & Baweja, J. S., & Kozick, R. J. (2000, June), Interactive Signals And Systems Laboratories Using Notebooks Paper presented at 2000 Annual Conference, St. Louis, Missouri. 10.18260/1-2--8489